add fontawesome icons

Gemfile

@@ -63,6 +63,7 @@ group :assets do
   gem 'uglifier', '>= 1.0.3'
   gem "therubyracer"
   gem 'bootstrap-sass'
+  gem "font-awesome-sass-rails", "~> 3.0.0"
 end

Gemfile.lock

@@ -81,6 +81,9 @@ GEM
       railties (>= 3.0.0)
     ffaker (1.14.0)
     ffi (1.1.5)
+    font-awesome-sass-rails (3.0.0.1)
+      railties (>= 3.1.1)
+      sass-rails (>= 3.1.1)
     foreman (0.60.2)
       thor (>= 0.13.6)
     gitlab_ci_meta (1.0)
@@ -257,6 +260,7 @@ DEPENDENCIES
   devise
   factory_girl_rails
   ffaker
+  font-awesome-sass-rails (~> 3.0.0)
   foreman
   gitlab_ci_meta
   grit

app/assets/stylesheets/main.scss

 @import "bootstrap";
-
+@import "font-awesome";
 $style_color: #5bc;
@@ -25,7 +25,7 @@ a {
 .navbar-ci {
   .navbar-inner {
     padding: 4px;
-    background: $style_color;
+    background: #2AB;
     .brand,
     .nav > li > a {