Sticky footer

Thanks to http://mystrd.at/data/sticky_footer.html
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
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
Merge pull request #1 from andrew/master

Adding pull request archive table.
Removing the locale and let it fallback