Fixed Issue: Add missing session restart abstract method
Updated translation: Fixed typos
Fixed issue: Hid importunate log messages in production mode
Fixed issue: Fixed PHPDoc
Merge pull request #302 from sergeyklay/master

Minor fixes
Merge branch 'master' of github.com:gleez/cms
New feature: Added Arr::process_config
New feature: Added Gleez::get_version
Updated feature: Updated Template::_set_default_server_headers
Merge pull request #303 from sergeyklay/master

Preparing to Upgrade Installer
Fixed issue: Amended PHPDoc
Merge pull request #304 from sergeyklay/master

Database-based session class
Update fetaure: updated cerber theme
Updated feature: Added some classes for installer views
Updated translation: Amended Russian for Installer
Updated feature: Added sticky footer. For example see: http://twitter.github.io/bootstrap/examples/sticky-footer-navbar.html
Updated feature: Updated views
Fixed issue: Added missed style
Merge pull request #305 from sergeyklay/master

Updated installer
Fixed issue: Fixed header