Second by size refactoring, this time from UI side, needs testing.

Migration from jQuery UI as main UI framework to UIkit.
Custom jQuery UI now contains only 4 JS components: draggable, droppable, selectable, sortable, and no CSS styles.
Custom Twitter Bootstrap 3.0 contains only tooltip JS component + tooltip and animation CSS styles.
HybridAuth fixes.
Mail class fix.
SEDITOR and IEDITOR css classes renamed into SIMPLE_EDITOR and INLINE_EDITOR.
Some css classes and styles refactoring and simplification.
data-dialog attribute support removed, use .cs-dialog class instead.
Icons now are used from Font Awesome, not jQuery UI.

System version 0.317
modules:
Blogs 0.055
Comments 0.015
Cron 0.007
Feedback 0.005
HybridAuth 2.1.1-cs25
OAuth2 0.019
Photo_gallery 0.006
Plupload 1.5.7-cs8
Static_pages 0.031
plugins:
Admin_default_theme 0.004
Fotorama 4.2.1-cs2
SimpleImage 2.3-cs1
TinyMCE 4.0.3-cs2