diff --git a/exercises/_old/9_todo_template/exercise.js b/exercises/_old/9_todo_template/exercise.js
deleted file mode 100644
index a0ce709..0000000
--- a/exercises/_old/9_todo_template/exercise.js
+++ /dev/null
@@ -1,93 +0,0 @@
-'use strict';
-
-var verify = require("../../lib/verify.js"),
-    _ = require("lodash"),
-    moment = require("moment");
-
-var run = {
-
-    json: {
-        "Tom": [
-            {
-                todo: "Clean kitchen",
-                date: moment().add(10, 'days').toJSON()
-            },
-            {
-                todo: "Learn Lo-Dash",
-                date: moment().add(1, 'days').toJSON()
-            },
-            {
-                todo: "Become a Lo-Dash master",
-                date: moment().add(3, 'days').toJSON()
-            }
-        ],
-        "Tim": [
-            {
-                todo: "Contribute to an Open-Source-Project",
-                date: moment().add(2, 'days').toJSON()
-            }
-        ]
-    },
-    expect: "<ul>\n<li>Tom\n<ul><li><b>URGENT</b> Learn Lo-Dash</li>\n<li>Become a Lo-Dash master</li>\n<li>Clean kitchen</li>\n</ul>\n</li>\n<li>Tim\n<ul><li><b>URGENT</b> Contribute to an Open-Source-Project</li>\n</ul>\n</li>\n</ul>"
-};
-
-
-var testing = {
-    'Checking with standard dataset...': {
-        input: run.json,
-        shouldbe: run.expect
-    },
-    'Checking without elements': {
-        input: {},
-        shouldbe: "<ul></ul>"
-    },
-    'Checking without todos': {
-        input: {
-            Martin: [],
-            Tina: [],
-            Nina: []
-        },
-        shouldbe: "<ul>\n<li>Martin\n<ul></ul>\n</li>\n<li>Tina\n<ul></ul>\n</li>\n<li>Nina\n<ul></ul>\n</li>\n</ul>"
-    },
-    'Checking sorting': {
-        input: {
-            Martin: [
-                {
-                    todo: "1",
-                    date: moment().add(3, 'days').toJSON()
-                },
-                {
-                    todo: "2",
-                    date: moment().add(2, 'days').toJSON()
-                },
-                {
-                    todo: "3",
-                    date: moment().add(1, 'days').toJSON()
-                },
-                {
-                    todo: "4",
-                    date: moment().add(10, 'days').toJSON()
-                }
-            ]
-        },
-        shouldbe: "<ul>\n<li>Martin\n<ul><li><b>URGENT</b> 3</li>\n<li><b>URGENT</b> 2</li>\n<li>1</li>\n<li>4</li>\n</ul>\n</li>\n</ul>"
-    },
-    'Checking timecalculation': {
-        input: {
-            Martin: [
-                {
-                    todo: "1",
-                    date: moment().add(2, 'days').add(1, 'hours').toJSON()
-                },
-                {
-                    todo: "1",
-                    date: moment().add(1, 'days').add(23, 'hours').toJSON()
-                }
-
-            ]
-        },
-        shouldbe: "<ul>\n<li>Martin\n<ul><li><b>URGENT</b> 1</li>\n<li>1</li>\n</ul>\n</li>\n</ul>"
-    }
-};
-
-module.exports = verify(testing, run);
diff --git a/exercises/_old/9_todo_template/problem.fr.md b/exercises/_old/9_todo_template/problem.fr.md
deleted file mode 100644
index 8fc0618..0000000
--- a/exercises/_old/9_todo_template/problem.fr.md
+++ /dev/null
@@ -1,126 +0,0 @@
-# Template de To-Do
-
-Si vous avez fini le dernier exercice, vous vous dites peut-être :
-« des templates, ça ? C’est juste un autre mot pour de l’interpolation
-de texte ! » ; mais en fait, la fonction `template` de Lo-Dash vous
-permet d’aller plus loin.
-
-## Aller au fond des templates
-
-`template()` peut davantage.  Vous pouvez en fait ajouter n’importe quel
-code JavaScript entre les `<%…%>`.  Si vous connaissez PHP, c’est à peu
-près la même chose que son `<?… ?>`.
-
-## Exemple
-
-```js
-var mytemplate = '<% _.forEach(data, function(item){ %>' +
-    '<li><%= item %></li>' +
-    '<% }); %>';
-_.template(mytemplate)({data: [1, 2, 3]});
-
-/*
-<li>1</li>
-<li>2</li>
-<li>3</li>
-*/
-```
-
-Vous pouvez écrire des templates sans avoir à apprendre une syntaxe de
-templates dédiée -- juste du JavaScript.
-
-En deuxième argument, `template()` accepte un objet d’options.  Une
-des options que j’aime beaucoup et que je voudrais vraiment vous montrer
-s’appelle `imports`.  Avec cette option, vous pouvez définir un objet
-dont les propriétés seront accessibles à toutes les exécutions du template,
-comme variables locales.
-
-## Exemple
-```js
-var ucfirst = function (str) {
-    var f = str.charAt(0).toUpperCase();
-    return f + str.substr(1);
-};
-
-_.template('Bonjour <%= ucfirst(foo) %>',
-    { 'imports': { 'ucfirst': ucfirst } })({foo: "mike"});
-// Bonjour Mike
-```
-
-Pas mal, hein ?
-
-`template()` a de nombreuses options supplémentaires ; vous pouvez les
-découvrir dans la documentation :
-
-  [Lo-Dash docs](http://lodash.com/docs#template).
-
-## Votre mission
-
-Nous avons une structure JSON avec plusieurs tâches à faire :
-
-```js
-{ "Tom": [
-    {
-      "todo": "Clean kitchen",
-      "date": "2014-08-19T12:13:20.207Z"
-    },
-    {
-      "todo": "Lean Lo-Dash",
-      "date": "2014-08-10T12:13:20.210Z"
-    },
-    {
-      "todo": "Become a Lo-Dash master",
-      "date": "2014-08-12T12:13:20.210Z"
-    }
-  ],
-  "Tim": [
-    {
-      "todo": "Contibute to an Open-Sorce-Project",
-      "date": "2014-08-11T12:13:20.210Z"
-    }
-  ]
-}
-```
-
-Nous voulons créer une liste simple à base de `<ul>` et `<li>`,
-avec toutes nos tâches dedans.  Mais, en plus du code HTML de base,
-nous voulons :
-
-- Trier la liste des tâches par date croissante ;
-- Ajouter un « `<b>URGENT</b>` » au début de chaque `<li>` dont la date n‘est pas plus de 2 jours dans le futur.
-
-Le HTML produit devrait ressembler à ça :
-
-
-```html
-<ul>
-    <li>Tom
-    <ul><li><b>URGENT</b> Apprendre Lo-Dash</li>
-        <li>Devenir un maître Lo-Dash</li>
-        <li>Nettoyer la cuisine</li>
-    </ul>
-    </li>
-    <li>Tim
-    <ul><li><b>URGENT</b> Contribuer à un projet open-source</li>
-    </ul>
-    </li>
-</ul>
-```
-
-## Base de travail
-
-Votre solution doit être un module avec la structure suivante :
-
-```js
-// On requiert Lo-Dash
-var _ = require("lodash");
-
-function generateListHTML(/* arguments */) {
-    // Faites votre boulot ici, renvoyez les bonnes données
-};
-
-// Exportez la fonction hors du module
-module.exports = generateListHTML;
-```
-
-**{appname}** appellera votre fonction et la testera avec divers arguments.
diff --git a/exercises/_old/9_todo_template/problem.ko.md b/exercises/_old/9_todo_template/problem.ko.md
deleted file mode 100644
index ef5bcd9..0000000
--- a/exercises/_old/9_todo_template/problem.ko.md
+++ /dev/null
@@ -1,113 +0,0 @@
-# To-do 템플릿 #
-마지막 연습 문제를 풀었다면, 아마 "템플릿? 그냥 문자열 머지잖아!"라고 생각할 수
-있습니다. 하지만 Lo-Dash의 `template` 함수는 매우 강력합니다.
-
-* * *
-## template() 깊게 살펴보기 ##
-`template()`은 훨씬 할 수 있는 일이 많습니다. 어떤 종류의 JavaScript 코드도
-`<% %>`로 감싸서 넣을 수 있습니다. PHP에 익숙하다면, `<% %>`는 `<? ?>`와 거의
-같습니다.
-
-#### 예제 ####
-```js
-var mytemplate = '<% _.forEach(data, function(item){ %>' +
-    '<li><%= item %></li>' +
-    '<% }); %>';
-_.template(mytemplate)({data: [1, 2, 3]});
-
-/*
-<li>1</li>
-<li>2</li>
-<li>3</li>
-*/
-```
-템플릿 구문을 배울 필요없이 템플릿을 작성할 수 있습니다. 그냥 JavaScript를
-쓰면 되니까요. 멋지지 않나요?
-
-
-두 번째 매개변수로, `template()`은 옵션 객체를 받을 수 있습니다. 내가 정말
-좋아하는 옵션 중에 하나로 `option.imports`가 있습니다. `option.imports`를
-사용하면, 템플릿 안에서 지역 변수로 가져올 수 있도록 값을 설명하는 객체를 정의할
-수 있습니다.
-
-#### 예제 ####
-```js
-var ucfirst = function (str) {
-    var f = str.charAt(0).toUpperCase();
-    return f + str.substr(1);
-};
-
-_.template('Hello <%= ucfirst(foo) %>',
-    { 'imports': { 'ucfirst': ucfirst } })({foo: "mike"});
-// Hello Mike
-```
-
-다시 한 번 말하지만, 멋지지 않나요?
-template()에는 많은 옵션이 있습니다. 더 자세한내용을 
-[Lo-Dash 문서](http://lodash.com/docs#template)를 읽으세요.
-
-
-* * *
-## 해야할 일 ##
-다른 to-do의 JSON이 있습니다.
-
-```js
-{ "Tom": [
-    {
-      "todo": "Clean kitchen",
-      "date": "2014-08-19T12:13:20.207Z"
-    },
-    {
-      "todo": "Learn Lo-Dash",
-      "date": "2014-08-10T12:13:20.210Z"
-    },
-    {
-      "todo": "Become a Lo-Dash master",
-      "date": "2014-08-12T12:13:20.210Z"
-    }
-  ],
-  "Tim": [
-    {
-      "todo": "Contribute to an Open-Source-Project",
-      "date": "2014-08-11T12:13:20.210Z"
-    }
-  ]
-}
-```
-모든 to-do 아이템을 가지는 간단한 중첩된 `<ul><li>` 목록을 만들고 싶습니다.
-하지만 HTML 코드를 만드는 김에, 이런 것도 하고 싶습니다.
-- to-do 아이템을 날짜로 정렬(빠른 것에서 느린 것 순으로)
-- 날짜가 오늘을 기준으로 2일 이내의 모든 `<li>`에 "<b>URGENT</b>" 추가
-
-만들어진 HTML은 이렇게 보여야 합니다.
-
-
-```html
-<ul>
-    <li>Tom
-    <ul><li><b>URGENT</b> Learn Lo-Dash</li>
-        <li>Become a Lo-Dash master</li>
-        <li>Clean kitchen</li>
-    </ul>
-    </li>
-    <li>Tim
-    <ul><li><b>URGENT</b> Contribute to an Open-Source-Project</li>
-    </ul>
-    </li>
-</ul>
-```
-
-#### 템플릿 ####
-모든 해답은 다음 템플릿을 사용합니다.
-```js
-// Lo-Dash 라이브러리 불러오기
-var _ = require("lodash");
-
-var worker = function(/* arguments */) {
-    // 뭔가 해서 결과를 반환하기
-};
-
-// worker 함수를 nodejs 모듈로 내보내기
-module.exports = worker;
-```
-**lololodash**가 다른 인자로 함수를 호출해 테스트할 것입니다.
diff --git a/exercises/_old/9_todo_template/problem.md b/exercises/_old/9_todo_template/problem.md
deleted file mode 100644
index f817af8..0000000
--- a/exercises/_old/9_todo_template/problem.md
+++ /dev/null
@@ -1,114 +0,0 @@
-# To-do Template #
-If you finished the last exercise, you might think, "Template?
-That's just another word for string-merge!; but, the `template` function
-in Lo-Dash is very powerful.
-
-* * *
-## Going deep into template() ##
-`template()` is much more. You can add any kind of javascript code by
-escaping it with `<% %>`. If you are familiar with PHP, `<% %>` is almost
-the same as `<? ?>`.
-
-#### Example ####
-```js
-var mytemplate = '<% _.forEach(data, function(item){ %>' +
-    '<li><%= item %></li>' +
-    '<% }); %>';
-_.template(mytemplate)({data: [1, 2, 3]});
-
-/*
-<li>1</li>
-<li>2</li>
-<li>3</li>
-*/
-```
-You can write templates without learning a template syntax -- just use
-Javascript. Isn't that awesome?
-
-
-As a second parameter, `template()` accepts an options object. One of
-the options I really like and want to show you is `option.imports`.
-With `options.imports`, you can define an object to describe values
-to import into the template as local variables.
-
-#### Example ####
-```js
-var ucfirst = function (str) {
-    var f = str.charAt(0).toUpperCase();
-    return f + str.substr(1);
-};
-
-_.template('Hello <%= ucfirst(foo) %>',
-    { 'imports': { 'ucfirst': ucfirst } })({foo: "mike"});
-// Hello Mike
-```
-
-Again, isn't that awesome?
-template() has many more options; you can read more about them on
-[Lo-Dash docs](http://lodash.com/docs#template).
-
-
-* * *
-## Your Mission ##
-We have a JSON of different to-do's:
-
-```js
-{ "Tom": [
-    {
-      "todo": "Clean kitchen",
-      "date": "2014-08-19T12:13:20.207Z"
-    },
-    {
-      "todo": "Learn Lo-Dash",
-      "date": "2014-08-10T12:13:20.210Z"
-    },
-    {
-      "todo": "Become a Lo-Dash master",
-      "date": "2014-08-12T12:13:20.210Z"
-    }
-  ],
-  "Tim": [
-    {
-      "todo": "Contribute to an Open-Source-Project",
-      "date": "2014-08-11T12:13:20.210Z"
-    }
-  ]
-}
-```
-We want to create a simple nested `<ul><li>` list of all the
-to-do items. But, in addition to creating HTML code, we want you to:
-- Sort the to-do items by date (from earliest to latest)
-- Add an "<b>URGENT</b>" to every `<li>` when the date is only 2 days or fewer from today.
-
-The HTML produced should look like this:
-
-
-```html
-<ul>
-    <li>Tom
-    <ul><li><b>URGENT</b> Learn Lo-Dash</li>
-        <li>Become a Lo-Dash master</li>
-        <li>Clean kitchen</li>
-    </ul>
-    </li>
-    <li>Tim
-    <ul><li><b>URGENT</b> Contribute to an Open-Source-Project</li>
-    </ul>
-    </li>
-</ul>
-```
-
-#### Template ####
-All of your solutions should follow this template:
-```js
-// include the Lo-Dash library
-var _ = require("lodash");
-
-var worker = function(/* arguments */) {
-    // do work; return stuff
-};
-
-// export the worker function as a nodejs module
-module.exports = worker;
-```
-**lololodash** will call your function and test it with different arguments.
diff --git a/exercises/_old/9_todo_template/solution/solution.js b/exercises/_old/9_todo_template/solution/solution.js
deleted file mode 100644
index e76c170..0000000
--- a/exercises/_old/9_todo_template/solution/solution.js
+++ /dev/null
@@ -1,42 +0,0 @@
-'use strict';
-
-var _ = require("lodash");
-
-var template = function (inputvar) {
-
-    // Sort by date
-    _.forEach(inputvar, function (item, key) {
-        inputvar[key] = _.sortBy(item, "date");
-    });
-
-
-    /*
-     Check if a given date is less than 2 days in the feature
-     @param date {string} - Date-String to check
-     @return {boolean}
-     */
-    var checkdate = function (date) {
-        // 24*60*60*1000*2 == 2 days in ms
-        return (new Date(date) - new Date()) < 24 * 60 * 60 * 1000 * 2;
-    };
-
-    var mytemplate = '<ul>\n' +
-        '<% _.forEach(input, function(todos, name){ %>' +
-            '<li><%= name %>\n' +
-            '<ul>' +
-            '<% _.forEach(todos, function(todo_item){ %>' +
-                '<li>' +
-                // Setting URGENT
-                '<% if(checkdate(todo_item.date)) { %><b>URGENT</b> <% } %>' +
-                '<%= todo_item.todo %>' +
-                '</li>\n' +
-            '<% }); %>' +
-            '</ul>\n' +
-            '</li>\n' +
-        '<% }); %>' +
-        '</ul>';
-
-    return _.template(mytemplate, { 'imports': { 'checkdate': checkdate } })({input: inputvar});
-};
-
-module.exports = template;
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..520284a
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,1046 @@
+{
+  "name": "lololodash",
+  "version": "0.9.1",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "abbrev": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
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+    },
+    "after": {
+      "version": "0.8.2",
+      "resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
+      "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8="
+    },
+    "ansi-align": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-align/-/ansi-align-2.0.0.tgz",
+      "integrity": "sha1-w2rsy6VjuJzrVW82kPCx2eNUf38=",
+      "requires": {
+        "string-width": "^2.0.0"
+      }
+    },
+    "ansi-regex": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+      "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg="
+    },
+    "ansi-styles": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "requires": {
+        "color-convert": "^1.9.0"
+      }
+    },
+    "ansicolors": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/ansicolors/-/ansicolors-0.2.1.tgz",
+      "integrity": "sha1-vgiVmQl7dKXJxKhKDNvNtivYeu8="
+    },
+    "boxen": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/boxen/-/boxen-1.3.0.tgz",
+      "integrity": "sha512-TNPjfTr432qx7yOjQyaXm3dSR0MH9vXp7eT1BFSl/C51g+EFnOR9hTg1IreahGBmDNCehscshe45f+C1TBZbLw==",
+      "requires": {
+        "ansi-align": "^2.0.0",
+        "camelcase": "^4.0.0",
+        "chalk": "^2.0.1",
+        "cli-boxes": "^1.0.0",
+        "string-width": "^2.0.0",
+        "term-size": "^1.2.0",
+        "widest-line": "^2.0.0"
+      }
+    },
+    "camelcase": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+      "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0="
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+    "capture-stack-trace": {
+      "version": "1.0.1",
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+    },
+    "cardinal": {
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/cardinal/-/cardinal-0.5.0.tgz",
+      "integrity": "sha1-ANX2YdvUqr/ffUHOSKWlm8o1opE=",
+      "requires": {
+        "ansicolors": "~0.2.1",
+        "redeyed": "~0.5.0"
+      }
+    },
+    "chalk": {
+      "version": "2.4.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+      "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+      "requires": {
+        "ansi-styles": "^3.2.1",
+        "escape-string-regexp": "^1.0.5",
+        "supports-color": "^5.3.0"
+      }
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+    "charm": {
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diff --git a/package.json b/package.json
index 20e1182..91311ed 100644
--- a/package.json
+++ b/package.json
@@ -1,14 +1,14 @@
 {
   "name": "lololodash",
-  "version": "0.9.0",
+  "version": "0.9.1",
   "description": "A Set of Lo-Dash Javascript Exercises",
   "main": "lololodash.js",
   "repository": {
     "type": "git",
     "url": "https://github.com/mdunisch/lololodash.git"
   },
-  "engines" : {
-    "node" : ">=4.0.0"
+  "engines": {
+    "node": ">=4.0.0"
   },
   "bin": "lololodash.js",
   "preferGlobal": true,