Added avatar placeholder.

app/assets/javascripts/app/controllers/_profile/avatar.js.coffee

@@ -0,0 +1,60 @@
+class Index extends App.Controller
+  events:
+    'submit form': 'update'
+
+  constructor: ->
+    super
+    return if !@authenticate()
+    @render()
+
+  render: =>
+    @html App.view('profile/avatar')()
+
+
+  update: (e) =>
+    e.preventDefault()
+    params = @formParam(e.target)
+    error = @form.validate(params)
+    if error
+      @formValidate( form: e.target, errors: error )
+      return false
+
+    @formDisable(e)
+
+    # get data
+    @locale = params['locale']
+    @ajax(
+      id:   'preferences'
+      type: 'PUT'
+      url:  @apiPath + '/users/preferences'
+      data: JSON.stringify(params)
+      processData: true
+      success: @success
+      error:   @error
+    )
+
+  success: (data, status, xhr) =>
+    App.User.retrieve(
+      App.Session.get( 'id' ),
+      =>
+        App.i18n.set( @locale )
+        App.Event.trigger( 'ui:rerender' )
+        App.Event.trigger( 'ui:page:rerender' )
+        @notify(
+          type: 'success'
+          msg:  App.i18n.translateContent( 'Successfully!' )
+        )
+      ,
+      true
+    )
+
+  error: (xhr, status, error) =>
+    @render()
+    data = JSON.parse( xhr.responseText )
+    @notify(
+      type: 'error'
+      msg:  App.i18n.translateContent( data.message )
+    )
+
+App.Config.set( 'Avatar', { prio: 1100, name: 'Avatar', parent: '#profile', target: '#profile/avatar', controller: Index }, 'NavBarProfile' )
+

app/assets/javascripts/app/views/profile/avatar.jst.eco

@@ -0,0 +1,5 @@
+<form class="form-normal">
+  <h2><%- @T( 'Avatar' ) %></h2>
+  <div class="snapshot"></div>
+  <button type="submit" class="btn"><%- @T( 'Snapshot' ) %></button>
+</form>