Added Response#show
Added the location map to Response#show

Added and styled apt css
Added a link to show response
Wait for the server to respond before adding a new option to a question
Save a question model only if there have been changes since the last save.
Revert "Wait for the server to respond before adding a new option to a question"

This reverts commit 555ca80e2593cf44fb7ef600380bd5803dcd0d22.
Added force_encoding to rating question and category question in Response#decorator
Don't save an option if there are no changes since the last save.
Don't save a category if there are no changes since the last save.
Added the airbrake javascript notifier
Wait for the server to destroy option before emptying the collection.
Revert "Wait for the server to destroy option before emptying the collection."

This reverts commit 145f74aa38e192fa31b010b258ab14b339e18cd7.
Finalizze survey only if save is successful
Merge branch 'feature/save-changed-backbone-models-only' into develop
Merge remote-tracking branch 'origin/master' into develop