Removed event sub process buttons
Added event-listener support + fixed undo UI-update behavior
Merge branch 'master' of https://github.com/Activiti/Activiti-Designer
Image fix for custom tasks
Deleted redundant image provider class
Set version to 5.14.0 for release
Merge remote-tracking branch 'designer-original/master'

Conflicts:
	org.activiti.designer.gui/plugin.xml