Released version 15.03.19

• WP Social Plugin: Hide message in login box when the plugin is enabled but all oAuths are disabled
• GCE: Added default values for hidden parameters and removed some metaboxes to simplify user experience
• MU-PLUGIN: Created common-functions.php and blocs-functions.php pluggins to include common functions which affects all themes
• Disabled the kses filter on import. Enabled again when the import is finished.
• GCE: Fixed warning message in list of calendars
• MCD: Added https compatibility to multisite clone duplicator.
• MU-PLUGIN: Reviewed default position, hidden and collapsed meta-boxes for pages and posts, and enable or disable discussion's metabox
• Disabled gravatar.com requests.
• Added plugin Simple-Local-Avatars.