minor fix
update database table version if uploaded language already exist
added functions osc_check_language_update and improved function _need_update
added laguange installation functions and actions
Merge remote-tracking branch 'origin/develop' into develop
added new helper functions for market api urls osc_market_featured_url and osc_market_count_url,
use helpers at market/index.php theme file
change ibrowser to tinyMCEajaxfilemanager plugin, fixed ajaxfilemanagerplugin, all related to issue #570
create folder at upgrade-funcs
change read permissions
Merge branch '570' into develop
Merge branch 'develop' of github.com:osclass/Osclass into develop
CSRF Tokens were missing in a few places
some changes and fixes
message is now clear about warning page-images folder not being writable
missing file
Merge branch 'develop' into testing