Add setting for Ember project sub-path

Closes lamabiker#5

Author: alexlafroscia

lib/ember-cli-helper-view.coffee

@@ -87,7 +87,7 @@ class EmberCliHelperView extends View
       command = atom.config.get('ember-cli-helper.pathToEmberExecutable')
       args    = [task]
       options =
-        cwd: atom.project.getPaths()[0] + '/'
+        cwd: atom.project.getPaths()[0] + atom.config.get('ember-cli-helper.emberProjectPath')
       stdout = (out)=> @addLine out
       stderr = (out)=> @addLine out.fontcolor('red')
       exit = (code)=>
@@ -126,7 +126,7 @@ class EmberCliHelperView extends View
     args = ['generate', query, "type:object"]
     args.push "coffee:true" if atom.config.get 'ember-cli-helper.generateCoffeescript'
     options =
-      cwd: atom.project.getPaths()[0]
+      cwd: atom.project.getPaths()[0] + atom.config.get('ember-cli-helper.emberProjectPath')
     stdout = (out)=> @addLine out.fontcolor("orange")
     exit = (code)-> atom.beep() unless code == 0
     try

lib/ember-cli-helper.coffee

@@ -5,17 +5,40 @@ module.exports =
 
   config:
     generateCoffeescript:
+      title: 'Generate CoffeeScript'
+      description: 'Enable to generate CoffeeScript files instead of JavaScript'
       type: 'boolean'
       default: false
 
     pathToNodeExecutable:
+      title: 'Path to Node Executable'
+      description: """
+        For the package to work correctly, you need to specify the path to node
+        on your computer
+        """
       type: 'string'
       default: '/usr/local/bin/node'
 
     pathToEmberExecutable:
+      title: 'Path to Ember Executable'
+      description: """
+        For the package to work correctly, you need to specify the path to the
+        global ember executable on your computer
+        """
       type: 'string'
       default: '/usr/local/bin/ember'
 
+    emberProjectPath:
+      title: 'Ember Project Path'
+      description: """
+        Change only if your Ember project is not in the root of your project,
+        i.e. if the Ember project is a subdirectory of the directory that's
+        currently open in Atom. Particularly useful with project-manager, where
+        you can change settings on a per-project basis.
+        """
+      type: 'string'
+      default: '/'
+
 
   activate: (state = {}) ->
     @emberCliHelperView = new EmberCliHelperView(state.emberCliHelperViewState)