#1453 Blended CSS - Deleted topics do not show as different color

New branch
Update .gitignore
Rename Plugins Manager to Plug-in Manager (just like in Joomla!)
Fix #1659: Split topic: view counter and polls accidentally cloned from old topic
Fix #1619: Phantom (deleted) users showing up in statistics
#1660 Backend dashboard: Link plugins redirect to the joomla plugins
Merge pull request #1662 from xillibit/k30_bugs10

#1660 Backend dashboard: Link plugins redirect to the joomla plugins
Merge pull request #1664 from mahagr/master

Fix #1659, #1619, rename plugins manager to match Joomla
When topic is deleted button in default_actions is still delete
Use Kunena API when save profile info in Kunena users manager
Merge pull request #1663 from xillibit/k30_bugs8

#1653 K 3.0 update credits page
J25 Backend: Added Plug-in to XML and corrected some images.
Merge branch 'master' of git://github.com/Kunena/Kunena-2.0
J25 Backend: Little template quirk.
J25 Backend: Comment out unused LESS file but keep them for reference.
J30/J25 Backend: Disable GUI access to GIT install.
Merge branch 'master' of github.com:coder4life/Kunena-2.0
Merge pull request #1672 from coder4life/master

Fix #1671, Fix #1670, Fix#1660 Various backend improvements.
Merge remote-tracking branch 'origin/master' into css-fixes-1

Conflicts:
	components/com_kunena/template/blue_eagle/css/kunena.skinner.css
Merge remote-tracking branch 'origin/master' into css-fixes-1