Fix for fatal error during activation with fresh install of WordPress 4.0 (missed WPLANG constant caused plugin to stop execution).
Unfortunately it worked fine under WP 4.0 with wp-config.php from previous version with WPLANG defined.
Polish translation was updated. Thanks to Grzegorz Janoszka.
Dutch - Nederlands translation was updated. Thanks to Harald Labout.
load_plugin_textdomain() call moved to the 'plugins_loaded' hook for higher compatibility with translation plugins.
In case other plugin had some uppercase letters at the DB table name PGC failed to define that plugin as table owner. It is fixed now.
Minor code cleanup and unused piece of code removing
Polish translation is added, thanks to Esej Konrad Łącki.
Lithuanian translation is added, thanks to Vincent G.
AJAX empty response for WordPress multi-site with subdomains is fixed - thanks to alx359.
AJAX error processing is enhanced slightly.
Minor enhancements to plugin page CSS are made.
Chinese Simple translation is added.
Minor change to pgc-ajax.js errors processing is made.
Bug fix: database table names had been processed in the lowercase format and tables could not be deleted if have uppercase letters in it. It is fixed now. If database table has 'dbTableWithSomeData' name, you will see it as 'dbTableWithSomeData', not as 'dbtablewithsomedata'. Thanks to Deirdre who found this bug.
Technical update for WordPress 3.0 full compatibility. Staff deprecated since WordPress v.3.0 is excluded.