Fix potential redirect in Home view (was using deprecated variables from J!1.5)
Merge branch 'master' of github.com:Kunena/Kunena-Forum
Optimize slow queries when editing a post or posting an unapproved message
Merge branch 'master' of github.com:Kunena/Kunena-Forum
Fix image class not using Joomla tmp directory when it's possible
Joomla ACL: Make sure that  category action ACL is always array
Merge branch 'master' of github.com:Kunena/Kunena-Forum
Merge pull request #2113 from mahagr/master

Fix a few bugs (home redirect, slow query on posting, tmp directory search, warnings in ACL)