Profile nav tests supressed as they are done in signout-component
Convert inputs to xml style with closing /
Update page title Signin -> Sign in
Add aria-required attr to required fields

This depends on the field being marked as required in the form via the
nonEmpty constraint (using .verifying(nonEmpty))
Output info/error divs only if field requires it
Override submit input gradient in Firefox OS with background property
Add cursor pointer to labels
Remove empty selector
Use box-sizing mixin on text input
Remove duplicate colour variable
Merge remote-tracking branch 'origin/master' into signin-form

Conflicts:
	common/test/assets/javascripts/spec/ProfileNav.spec.js
	identity/conf/routes
Merge branch 'signin-form' of github.com:guardian/frontend into signin-form
Merge pull request #1323 from guardian/signin-form

Signin form
Merge remote-tracking branch 'origin/master' into signin-form-with-id-api

Conflicts:
	identity/app/controllers/SigninController.scala