Merge pull request #702 from sergeyklay/feature-bootstrap-3

Minor fixes
Update feature: Do not debug log in production
Fixed issue: Fix admin users edit password being changed when empty
Fixed issue #703 : Fixed teaser issue
Update feature: Bumped version to 0.10.10
New feature: Added admin/tools controller. Stats phpinfo and db info (WIP)
Update feature: Added file helper methods
Fixed issue: Fixed message. Validator uses labels that can be initialized in model
Updated translation: Correction related to the previous commit (e938820)
Updated feature: More convenient error messages
Fixed issue: Improved srings for localization