[Core] Adds Bootstrap 3.3 compatible reloadable modals jquery plugin.

(refs #5549, gh-40)
[Auth] SocialProfilesFieldset view script now uses new reloadable modal script.

(refs #5549, gh-40)
[Applications] Fixes: Social profiles buttons and rating button for applications w/o comments.

* Uses new reloadable modal jquery plugin.
* Every profile is loaded again.
* Header and Footer displays nicely again
* Comments modal opens again, if application has no comments yet.

(refs #5549, gh-40)
Merge branch 'feature/fix_modal_boxes' into develop