Finish select2-ajax for users. Added Select2Helper for tests

app/assets/javascripts/users_select.js.coffee

@@ -19,7 +19,7 @@ $ ->
     multiple: $('.ajax-users-select').hasClass('multiselect')
     minimumInputLength: 0
     ajax: # instead of writing the function to execute the request we use Select2's convenient helper
-      url: "/api/v3/users.json"
+      url: "/api/" + gon.api_version + "/users.json"
       dataType: "json"
       data: (term, page) ->
         search: term # search term
@@ -33,11 +33,11 @@ $ ->
     initSelection: (element, callback) ->
       id = $(element).val()
       if id isnt ""
-        $.ajax("http://api.rottentomatoes.com/api/public/v1.0/users/" + id + ".json",
+        $.ajax(
+          "/api/" + gon.api_version + "/users/" + id + ".json",
+          dataType: "json"
           data:
-            apikey: "ju6z9mjyajq2djue3gbvv26t"
-
-          dataType: "jsonp"
+            private_token: gon.api_token
         ).done (data) ->
           callback data
 

app/assets/stylesheets/application.scss

@@ -15,7 +15,7 @@
 @import "gitlab_bootstrap.scss";
 
 @import "common.scss";
-@import "ref_select.scss";
+@import "selects.scss";
 
 @import "sections/header.scss";
 @import "sections/nav.scss";

app/assets/stylesheets/common.scss

@@ -555,17 +555,3 @@ img.emoji {
   display: none;
 }
 
-.ajax-users-select {
-  width: 400px;
-}
-
-.user-result {
-  .user-image {
-    float: left;
-  }
-  .user-name {
-  }
-  .user-username {
-    color: #999;
-  }
-}

app/assets/stylesheets/selects.scss

@@ -1,3 +1,23 @@
+.ajax-users-select {
+  width: 400px;
+}
+
+.user-result {
+  .user-image {
+    float: left;
+  }
+  .user-name {
+  }
+  .user-username {
+    color: #999;
+  }
+}
+
+.select2-no-results {
+  padding: 7px;
+  color: #666;
+}
+
 /** Branch/tag selector **/
 .project-refs-form {
   margin: 0;

app/controllers/application_controller.rb

@@ -152,9 +152,8 @@ class ApplicationController < ActionController::Base
 
   def add_gon_variables
     gon.default_issues_tracker = Project.issues_tracker.default_value
-    if current_user
-      gon.api_token = current_user.private_token
-      gon.gravatar_url = request.ssl? ? Gitlab.config.gravatar.ssl_url : Gitlab.config.gravatar.plain_url
-    end
+    gon.api_version = Gitlab::API.version
+    gon.api_token = current_user.private_token if current_user
+    gon.gravatar_url = request.ssl? ? Gitlab.config.gravatar.ssl_url : Gitlab.config.gravatar.plain_url
   end
 end