delay initialisation of id bootstrap
move initialisation into common.js
move initialisation calls to common and fix validation
Merge remote-tracking branch 'origin/master' into fix-profile-page-avatar
Merge remote-tracking branch 'origin/master' into fix-profile-page-avatar
move function calls to the top of common bootstrap
Merge pull request #6533 from guardian/fix-profile-page-avatar

delay initialisation of id bootstrap