sorted root entities by name (not case sensitive).
removed sorting functionality from the entity tree browser. Client must sort list of entity headers as they wish before configuring the tree with that list, as the root entities are presented in the same order as the given list of entity headers.
switched the sorting functionality to the EntityTreeBrowser.
Moved sort functionality back into the EntityTreeBrowser. The code now lies in EntityBrowserUtils.
Merge pull request #1166 from toddis/SortWhenSetRootEntities

SWC-1671