*Initialize UI when map is changed.
*Fixed a bug where while iterating self.active_groups elements were removed causing a crash.
*Set font size correctly in PauseMenu example.

*Removed debugging code causing PauseMenu example to load a non-existant font.

* Updated combo box to current font system.
* Changed font to font_size and added font_path to widget table. When added, a widget will have it's font determined at sent to the font property of the table.
* Moved THUI table initialization to Initialize function.

* Set justify to match label's by default.
* Added background to Label. Added text justify independent of label position justify.
* Updated with changes to Rel2Abs and Fonts.
* Removed Rel2Abs functions, no longer needed.
* Removed deprecated functions.
* Fixed for font size changes.
* Fixed for font size changes.
* Added font scaling for autoscale mode.

* Fixed bug causing nil reference when attempting to hide multiple groups with the same name.

* Reworked qtree
* Show/Hide can now also take a Group instead of a name to show/show a group.
* Allowed multiple groups to have the same name. calling show/hide functions will show(or hide) all groups with that name.

* Moved paused variable to top of Main.lua example

* Added Show() and Hide() function to allow multiple groups to be visible
* Added function to check if mouse is hovering over a widget

Added update callback to group. This will make it possible to check for keys (or anything else) every frame.

Fixed copy/paste errors in Checkbox.lua