Removed NGProgress

In an effort to get the JS file size down, i've removed NGProgress and replaced with TurboLinks own loading indicator

Ref #13820

Gemfile

@@ -213,7 +213,6 @@ gem 'jquery-atwho-rails', '~> 1.3.2'
 gem 'jquery-rails',       '~> 4.0.0'
 gem 'jquery-scrollto-rails', '~> 1.4.3'
 gem 'jquery-ui-rails',    '~> 5.0.0'
-gem 'nprogress-rails',    '~> 0.1.6.7'
 gem 'raphael-rails',      '~> 2.1.2'
 gem 'request_store',      '~> 1.2.0'
 gem 'select2-rails',      '~> 3.5.9'

Gemfile.lock

@@ -483,7 +483,6 @@ GEM
     newrelic_rpm (3.14.1.311)
     nokogiri (1.6.7.2)
       mini_portile2 (~> 2.0.0.rc2)
-    nprogress-rails (0.1.6.7)
     oauth (0.4.7)
     oauth2 (1.0.0)
       faraday (>= 0.8, < 0.10)
@@ -964,7 +963,6 @@ DEPENDENCIES
   net-ssh (~> 3.0.1)
   newrelic_rpm (~> 3.14)
   nokogiri (~> 1.6.7, >= 1.6.7.2)
-  nprogress-rails (~> 0.1.6.7)
   oauth2 (~> 1.0.0)
   octokit (~> 3.8.0)
   omniauth (~> 1.3.1)

app/assets/javascripts/application.js.coffee

@@ -31,8 +31,6 @@
 #= require ace/ace
 #= require ace/ext-searchbox
 #= require underscore
-#= require nprogress
-#= require nprogress-turbolinks
 #= require dropzone
 #= require mousetrap
 #= require mousetrap/pause

app/assets/javascripts/logo.js.coffee

-NProgress.configure(showSpinner: false)
+Turbolinks.enableProgressBar();
 defaultClass = 'tanuki-shape'
 pieces = [

app/assets/stylesheets/application.scss

@@ -25,12 +25,6 @@
  */
 @import "framework";
-/*
- * NProgress load bar css
- */
-@import 'nprogress';
-@import 'nprogress-bootstrap';
-
 /*
  * Font icons
  */

app/assets/stylesheets/framework.scss

@@ -26,6 +26,7 @@
 @import "framework/mobile.scss";
 @import "framework/nav.scss";
 @import "framework/pagination.scss";
+@import "framework/progress.scss";
 @import "framework/panels.scss";
 @import "framework/selects.scss";
 @import "framework/sidebar.scss";

app/assets/stylesheets/framework/progress.scss

+html.turbolinks-progress-bar::before {
+  background-color: $progress-color!important;
+  height: 2px!important;
+  box-shadow: 0 0 10px $progress-color, 0 0 5px $progress-color;
+}

app/assets/stylesheets/framework/variables.scss

@@ -7,7 +7,7 @@ $gl-header-color: #323232;
 $gl-link-color: #333c48;
 $md-text-color: #444;
 $md-link-color: #3084bb;
-$nprogress-color: #c0392b;
+$progress-color: #c0392b;
 $gl-font-size: 15px;
 $list-font-size: 15px;
 $sidebar_collapsed_width: 62px;