Merge branch 'sort-text-removed-from-sort-dropdown' into 'master'

Removed sorted text from dropdowns

![Screen_Shot_2016-01-28_at_09.04.36](/uploads/9e0e1fdb45ad12d122f860a2164d9396/Screen_Shot_2016-01-28_at_09.04.36.png)

Closes #12796 

cc @creamzy @jschatz1 

See merge request !2635

app/views/admin/groups/index.html.haml

@@ -17,7 +17,7 @@
   .pull-right
     .dropdown.inline
       %a.dropdown-toggle.btn{href: '#', "data-toggle" => "dropdown"}
-        %span.light sort:
+        %span.light
         - if @sort.present?
           = sort_options_hash[@sort]
         - else

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

@@ -50,7 +50,7 @@
         .controls
           .dropdown.inline
             %button.dropdown-toggle.btn.btn-sm{type: 'button', 'data-toggle' => 'dropdown'}
-              %span.light sort:
+              %span.light
               - if @sort.present?
                 = sort_options_hash[@sort]
               - else

app/views/admin/users/index.html.haml

@@ -32,7 +32,7 @@
     .pull-right
       .dropdown.inline
         %a.dropdown-toggle.btn{href: '#', "data-toggle" => "dropdown"}
-          %span.light sort:
+          %span.light
           - if @sort.present?
             = sort_options_hash[@sort]
           - else

app/views/explore/groups/index.html.haml

@@ -18,7 +18,7 @@
   .pull-right
     .dropdown.inline
       %button.dropdown-toggle.btn{type: 'button', 'data-toggle' => 'dropdown'}
-        %span.light sort:
+        %span.light
         - if @sort.present?
           = sort_options_hash[@sort]
         - else

app/views/explore/projects/_dropdown.html.haml

 .dropdown.inline
   %button.dropdown-toggle.btn{type: 'button', 'data-toggle' => 'dropdown'}
-    %span.light sort:
+    %span.light
     - if @sort.present?
       = sort_options_hash[@sort]
     - elsif current_page?(trending_explore_projects_path) || current_page?(explore_root_path)
@@ -24,4 +24,3 @@
         = sort_title_recently_updated
       = link_to explore_projects_filter_path(sort: sort_value_oldest_updated) do
         = sort_title_oldest_updated
-

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

@@ -10,7 +10,7 @@
        
     .dropdown.inline
       %button.dropdown-toggle.btn{type: 'button', 'data-toggle' => 'dropdown'}
-        %span.light sort:
+        %span.light
         - if @sort.present?
           = @sort.humanize
         - else

app/views/shared/_sort_dropdown.html.haml

 .dropdown.inline.prepend-left-10
   %button.dropdown-toggle.btn{type: 'button', 'data-toggle' => 'dropdown'}
-    %span.light sort:
+    %span.light
     - if @sort.present?
       = sort_options_hash[@sort]
     - else