[COM_RESOURCES] getUsersGroups() made static
[COM_STORE] make html helper methods static
[COM_SUPPORT] various php strict errrors fixed
[COM_TOOLS] make save() signature match parent class method
[COM_CITATIONS] make format() method signature match usgae
[COM_EVENTS] make publish() and save() methods match parent class method signature
[COM_YSEARCH] remove old school reference assignment