Fixed a yielding bug in XULRadioGroup if there was no selection (possible after clearSelection method)
Added the gitignore for apps so we won't have to worry about loading all the apps in the repo (just add an exception if you want to add it)
Merge branch 'feature/radiogroup_yield_fix' into develop
Merge branch 'hotfix/5.5.1' into develop
Fixed bug in CustomTree, setColumnSortType(). Call to getColumnIndex needed a XULTreeCol dataId, not the object.
Bumped VERSION to 5.6
Merge branch 'release/5.6'