Adding bootstrap 4 classes
Version 1.4 brings bootstrap 4 support by default
Install file was still using hardcoded MySQL function. Changed to our MySQLi wrapper to make it compatible with php 5.6+ php 7.0+ support for the plugin itself
Changed the update url in the info file to reflect our new plugins page. This update is required if you want to run plugin version checks from within your admin panel, as the old update url is obsolete.
