chore: bump dependency-versions and node 10

- NodeJS versions below 10 are not tested anymore

.travis.yml

@@ -1,8 +1,7 @@
 sudo: false
 language: "node_js"
 node_js:
-  - "6"
-  - "7"
+  - "10"
 script:
   - npm install
   - npm run coverage

.vscode/launch.json

@@ -0,0 +1,29 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Mocha Tests",
+            "program": "${workspaceFolder}/node_modules/mocha/bin/_mocha",
+            "args": [
+                "-u",
+                "tdd",
+                "--timeout",
+                "999999",
+                "--colors",
+                "${workspaceFolder}/test"
+            ],
+            "internalConsoleOptions": "openOnSessionStart"
+        },
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Launch Program",
+            "program": "${workspaceFolder}/index.js"
+        }
+    ]
+}

helpers-io.js

@@ -39,7 +39,7 @@ function readFiles (directoryPath, options) {
   }
   var _options = options || {}
   // Collect all files
-  var result = util.asPromise((cb) => glob(_options.glob || '**', {cwd: directoryPath, mark: true}, cb))
+  var result = util.asPromise((cb) => glob(_options.glob || '**', { cwd: directoryPath, mark: true }, cb))
     .then(function (relativePaths) {
       var set = relativePaths
         // Ignore directories
@@ -59,8 +59,8 @@ function readFiles (directoryPath, options) {
           return {
             path: path.relative(process.cwd(), fullPath),
             contents: _options.stream
-              ? fs.createReadStream(fullPath, {encoding: _options.encoding})
-              : util.asPromise((cb) => fs.readFile(fullPath, {encoding: _options.encoding}, cb))
+              ? fs.createReadStream(fullPath, { encoding: _options.encoding })
+              : util.asPromise((cb) => fs.readFile(fullPath, { encoding: _options.encoding }, cb))
           }
         }))
       })

index.js

@@ -96,9 +96,9 @@ function Customize (config, parentConfig, engines) {
     deep(_config).then(function (config) {
       debugState('New configuration', config)
     }, /* istanbul ignore next */
-      function (e) {
-        console.error('Error while debug-logging the built configuration ' + e.stack) // eslint-disable-line no-console
-      })
+    function (e) {
+      console.error('Error while debug-logging the built configuration ' + e.stack) // eslint-disable-line no-console
+    })
   }
 
   /**
@@ -245,7 +245,7 @@ function Customize (config, parentConfig, engines) {
       _metadata.config.modules.push(customizeModule.package)
     }
 
-    return customizeModule(new Customize({_metadata: _metadata}, _config, engines))
+    return customizeModule(new Customize({ _metadata: _metadata }, _config, engines))
   }
 
   /**
@@ -364,7 +364,7 @@ function customOverrider (a, b, propertyName) {
   if (isPromiseAlike(a) || isPromiseAlike(b)) {
     return Promise.all([a, b]).then(function ([_a, _b]) {
       // Merge the promise results
-      return mergeWith({}, {x: _a}, {x: _b}, customOverrider).x
+      return mergeWith({}, { x: _a }, { x: _b }, customOverrider).x
     })
   }
   // None of these options apply. Implicit "undefined" return value to invoke default overrider.