Create protected branches bundle

app/assets/javascripts/protected_branches/protected_branches_bundle.js

+/*= require_tree . */

app/views/projects/protected_branches/index.html.haml

 - page_title "Protected branches"
+- content_for :page_specific_javascripts do
+  = page_specific_javascript_tag('protected_branches/protected_branches_bundle.js')
 .row.prepend-top-default.append-bottom-default
   .col-lg-3

config/application.rb

@@ -87,6 +87,7 @@ module Gitlab
     config.assets.precompile << "users/users_bundle.js"
     config.assets.precompile << "network/network_bundle.js"
     config.assets.precompile << "profile/profile_bundle.js"
+    config.assets.precompile << "protected_branches/protected_branches_bundle.js"
     config.assets.precompile << "diff_notes/diff_notes_bundle.js"
     config.assets.precompile << "boards/boards_bundle.js"
     config.assets.precompile << "merge_conflicts/merge_conflicts_bundle.js"