[HUBZERO][#5011][COM_MEMBERS] Removed reference to nonexistent component.
[HUBZERO][#5012][MOD_INCREMENTAL_REGISTRATION] Reverting Hubzero namespaced class to 1.2.1 compatible underscore naming convention.
Joomla! 2.5.20
[HUBZERO][#5025][1.2.1] Added "itisunix" as a reserved group name in the cms.
[HUBZERO][#5013][COM_TOOLS] Mark and enforce tool abstract as being required.