Enable Rails autoloading in rake tasks

Then environment task disables, eager loading breaks with Devise
and requiring all needed files would be a mess
Realign check icon in aspect dropdown
Harden account deletion

* Wrap it into a transaction
* Use destroy over delete so dependent destroys get triggered
  and we thus don't fail on the foreign key constraits
* Check if a photos status message actually exists before accessing
  it
* Add missing dependent destroys
Merge pull request #4970 from Flaburgan/realign-check-icons

Realign check icon in aspect dropdown
Detect whether the stream has loaded more reliably in the hovercards cuke
Merge pull request #4971 from MrZYX/hovercard_cuke

Stabilize hovercards cuke
Add spinner to publisher when posting a message
Fixes #4949
try to make hovercards cuke even more stable
Add error flash message to publisher on error from server
bump addressable
bump backbone-on-rails
bump carrierwave
bump compass-rails
bump cucumber-rails
bump database_cleaner
bump devise
bump entypo-rails
bump factory_girl_rails
Refactor UI hint on status message submit.
Now we close the publisher on submit and reopen it on error. The spinner is shown while submission is in progress. Fixes #4949
Make publisher spinner also work in bootstrap publisher