K3.0/J3.0/J2.5 Backend: Small language tweak.
Merge pull request #1626 from coder4life/master

K3.0/J3.0/J2.5 Backend: Small language tweak.
#1620 User search should match the used settings
Fix #1627: Category selection dropdowns in views are missing
Merge pull request #1628 from xillibit/k30_bugs16

#1620 User search should match the used settings
Fix #1630: Clean IP Addresses SQL error
Fix #1634: Duplicate language string in com_kunena.sys.ini
Fix #1618: Upgrade from 1.6.4 fails (after JUpgrade)
Merge pull request #1635 from mahagr/master

Fix #1627, #1630, #1634, #1618
Fix #1617: MySQL version requirements message is confusing
Merge pull request #1637 from mahagr/master

 Fix #1617: MySQL version requirements message is confusing
Fix #1632 K3.0/J3.0/J2.5 Backend: Fix smilies delete not working.
Merge pull request #1638 from coder4life/master

Fix #1632 K3.0/J3.0/J2.5 Backend: Fix smilies delete not working.
Fix #1629 K3.0/J3.0/J2.5 Backend: Fix config report template issue and spelling mistake.
Merge pull request #1639 from coder4life/master

Fix #1629 K3.0/J3.0/J2.5 Backend: Fix config report template issue and spelling mistake.
 #1385: Fix Recent Topics / Unapproved Topics notice
Merge pull request #1640 from mahagr/master

Fix #1385: Fix Recent Topics / Unapproved Topics notice
Merge branch 'master' of git://github.com/Kunena/Kunena-2.0 into k30-plugin_manager