Sticky footer

Thanks to http://mystrd.at/data/sticky_footer.html
Merge remote-tracking branch 'upstream/master' into develop
Fixed status codes.
Update snow animation to a background image until improved #326
resolve merge conflict
only use the js hook when needed
Making sure the PullRequestDownloader can always have a token forced!
Removing dodgy tests.
Merge pull request #417 from stevelacey/bugfix/fixed-status-codes

Fixed status codes
Merge branch 'master' of github.com:simonowendesign/24pullrequests into simonowendesign-master

* 'master' of github.com:simonowendesign/24pullrequests:
  Update snow animation to a background image until improved #326

Conflicts:
	app/assets/stylesheets/site.css.scss
Fix path to background image
Merge pull request #421 from andrew/fix-background-image-link

Fix path to background image
Merge remote-tracking branch 'upstream/master' into develop
Add some missing translations
Removing another unrealiable JS test.
Merge pull request #423 from romainberger/tweak-french

Add some missing translations
Adding pull request archive table.
Use the current language in the dropdown label
Removing the language label
Using the language itself on the language label