Update overload.xml to Joomla 2.5 compatible xml file
Update overload.xml copyright date and version number
Fix createCategory() for Joomla 2.5
Implemented articles state feature (1=published, 0=unpublished, 2=archived, -2=trashed)
Merge pull request #2 from Twentronix/joomla25

Joomla! 2.5 compatibility, courtesy of Jurian / Twentronix