Fixes #343 by removing broken CharmGroup.equals.
Merge final fix for #343 from branch 'Anathema_2e' of https://github.com/anathema/anathema

Conflicts:
	Character_Generic_Impl/src/net/sf/anathema/character/generic/impl/magic/charm/CharmGroup.java
	Character_Generic_Impl/test/net/sf/anathema/character/generic/impl/magic/charm/CharmGroupTest.java