Merge pull request #255 from Calemsw/master

Italian Translation
Updated feature: Amin roles page now use datatables
Merge pull request #256 from sergeyklay/roles

Updated feature: Admin roles page now use datatables
Fixed issue: fix previous commit with admin/roles
Fixed Issue: Added missing permissions link
Fixed issue #254: Thanks to @Calemsw
Updated translation: Amended Russian for roles
Merge pull request #257 from sergeyklay/master

i18n
Updated feature: Amended README.md
Merge pull request #258 from sergeyklay/master

Calemsw
Updated translation: Amended Russian for roles
Fixed issue: Minor fixes in admin/roles/list
Updated feature: Increase the version number in accordance with the Gleez Versioning. See #255, #251, #244 and more minor additions
Updated feature: Updated Readme
Updated translation: Update translation in SQL
Updated translation: Amended Russian
Fixed issue: Fixed some minor errors in default.css
Updated feature: Added space in button
Updated feature: Added i18n support for render and memory usage info
Fixed issue: Cleanup Widget_Admin (whitespaces2tabs), fixed Welcome widget title