Merge pull request #630 from sergeyklay/feature-bootstrap-3

Minor fixes
Fixed issue: Admin quick shortcuts fixed width
Fixed issue: Minor dataTables input lable class
Update feature: Cleanup the admin/blog settings form wrappers
Update feature: Fix admin page settings form element wrappers
Update feature: Fix admin format form elemnt wrapper
Update feature: Cleanup the admin meni item form select2 element
Update feature: Cleanup the admin widget form select2 element
Update feature: Added select2 changes and cleanup
Update feature: Better locale detection on various options.

We can detect the locale based on:
HTTP Request
From URL
Subdomain
User Saved
Cookie Based

Default to English need to test these features and implement it.
Still experimental and not implemented, will be done shortly
Fixed issue: Fixed fatal i18n error and cleanup
Update feature: Minor cleanup
Updated translation: Amended Russian
Updated feature: Cerber Theme