Imrpove new file form

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/assets/stylesheets/sections/editor.scss

@@ -34,15 +34,4 @@
       margin: 5px 8px 0 8px;
     }
   }
-  .commit_message-group {
-    margin-top: 20px;
-
-    label {
-      font-size: 16px;
-      line-height: 20px;
-    }
-    textarea {
-      @extend .col-md-8;
-    }
-  }
 }

app/views/projects/new_tree/show.html.haml

@@ -6,13 +6,13 @@
       = label_tag 'file_name', class: "control-label" do
         File name
       .col-sm-10
-        %span.monospace= @path[-1] == "/" ? @path : @path + "/"
-         
+        .input-group
+          %span.input-group-addon
+            = @path[-1] == "/" ? @path : @path + "/"
           = text_field_tag 'file_name', params[:file_name], placeholder: "sample.rb", required: true, class: 'form-control'
-        %span
-           
+          %span.input-group-addon
             on
-          %span.label-branch= @ref
+            %span= @ref
 
     .form-group.commit_message-group
       = label_tag 'commit_message', class: "control-label" do