Adding isView() to join model, still work in progress, just needed to
get it committed so I can pull from git.
Commenting out some test code for new join isView() testing.
Merge branch 'joomla3' of github.com:Fabrik/fabrik into joomla3
Merge branch 'joomla3' of github.com:Fabrik/fabrik into joomla3
Merge branch 'joomla3' of github.com:Fabrik/fabrik into joomla3
Merge branch 'joomla3' of github.com:Fabrik/fabrik into joomla3
Merge branch 'joomla3' of github.com:Fabrik/fabrik into joomla3
Fixed nasty issue in list join backend code, where clearJoin() was
clearing $this->_join instead of $this->join, so saving lists with
multiple joins was screwing up, deleting the first join, and duplicating
subseqwuent ones in the joins table.