Merge branch 'refs/heads/master' into development
Close gh-16 [LOW]  Highlight was always loaded from HTTP, even on HTTPS sites
Update installation script with new class being used by the parent FOF installation script helper class
Language update

Signed-off-by: Nicholas K. Dionysopoulos <nicholas@akeebabackup.com>
Support for pdomysql driver to be added in Joomla! 3.4
Added check on category access permission
Close #17
Merge pull request #18 from akeeba/feature/17-fix-access

Added check on article access permission