Added Response#show
Added survey name to the list of responses header
Removed settings_pane move method and its references
Duplicate `production.rb` and add `staging.rb`.
Dragging-and-dropping a question in the same position has no effect.

Use the `update` event to hook into the drag-and-drop instead of `stop`.
Removed whitespace and semicolon
Added the location map to Response#show

Added and styled apt css
Made the overlay cover the full screen
Added a link to show response
bug fixes
Added logo
Changed category content type from string to text
Showing an overlay when re-ordering sub questions under question with options and categories.
Added Response#show
Added the location map to Response#show

Added and styled apt css
Added a link to show response
Show survey details on the settings pane when a question is deleted (instead of a blank settings pane).
Merge branch 'master' into develop
Save a question model only if there have been changes since the last save.
Don't save an option if there are no changes since the last save.