fixed method validator null support COLDBOX-130 #close
Changed isEmpty to isEmptyMessage

Changed isEmpty to isEmptyMessage for Railo compatibility.
They now have a built in function isEmpty
Merge pull request #134 from roemerd/patch-2

Changed isEmpty to isEmptyMessage
railo fixes
Merge branch 'development' of https://github.com/ColdBox/coldbox-platform

Conflicts:
	system/plugins/MessageBox.cfc