Handle widget creation and options_callback with GetPropertyOptionsEvent in DC_General version 2.
Merge pull request #146 from discordier/dev

DcGeneral version 2 compatibility.
Fix for #147 : Don´t remove the stylect markup when cloning a row, when the contao version is greater than 3.2.3
Skip mandatory fields on auto-submit
Merge pull request #150 from civ23/master

Skip mandatory fields on auto-submit