fix(300): use bootstrap date picker

HTML5 date type is only supported by Chrome.

Use angular-xeditable + ui-bootstrap ngClick workaround[1], plus a fork that
makes the input button optional[2] as we have space constraints.

Closes eHealthAfrica#300.

[1]: vitalets/angular-xeditable#164 (comment)
[2]: vitalets/angular-xeditable#388

bower.json

@@ -17,7 +17,7 @@
     "angular-dragdrop": "~1.0.12",
     "ng-csv": "~0.3.4",
     "angular-csv-import": "~0.0.16",
-    "angular-xeditable": "~0.1.9",
+    "angular-xeditable": "https://github.com/tlvince/angular-xeditable.git#bd328b25ec309c437b9d1a96bedb0a019768e9a0",
     "angular-eha.couchdb-auth": "~1.1.0",
     "angular-ui-grid": "ui-grid#~3.0.7",
     "ui-select": "angular-ui-select#~0.13.2",

src/app/planning/schedule/index.html

@@ -76,9 +76,17 @@ <h4><i class="fa fa-truck"></i> Schedules for Delivery Round: {{
         <td ng-bind="::facRnd.facility.name"></td>
         <td ng-bind="::facRnd.facility.id"></td>
         <td>
-          <a href="#" editable-date="facRnd.date" e-name="deliveryDate" e-form="rowform">
-            {{ srCtrl.getDate(facRnd.date) }}
-          </a>
+          <span
+            ng-bind="srCtrl.getDate(facRnd.date)"
+            editable-bsdate="facRnd.date"
+            e-name="deliveryDate"
+            e-form="rowform"
+            e-init-date="false"
+            e-datepicker-popup
+            e-ng-click="opened = !opened"
+            e-is-open="opened"
+            buttons="no"
+          ></span>
         </td>
         <td>
           <span editable-select="facRnd.driverID"