Merge pull request #2344 from xillibit/k30_bugs8

Set codename
K 3.0.4 : Warning: preg_match() expects parameter #2303 (to be sure)
Merge pull request #2343 from xillibit/k30_bugs3

 K 3.0.4 : Warning: preg_match() expects parameter #2303
K 3.0 : Responsive css in signatures with images does not work #2353
Update existing languages
Merge branch 'master' of github.com:Kunena/Kunena-Forum
Release Kunena 3.0.5
Merge pull request #2356 from mahagr/master

Kunena 3.0.5 Release
Increase version number
Merge pull request #2357 from mahagr/master

Increase version number
Merge pull request #2355 from 810/master-fix-1

K 3.0 : Responsive css in signatures with images does not work #2353
Update Joomla! minimum version during pre-check install