Fixed typo in unordered char list regexp
Fixed bug where an exception was thrown when removing an editor after opening the context menu multiple times.
Worked more on skin variables.
Fixed some issues with UI states.
Worked on skins some more.
Merge pull request #248 from dosercz/master

Fixed typo in unordered char list regexp
Fixed bug #6347
Fixed issue with callback on alert boxes.
Fixed menubar and checkbox skin issues.
Separated up button border and fixed some variable issues in default skin.