BZ 1119231 -  Process Designer's Data Assignments editor doesn't allow data assignments where DataInput and DataOutput contains same variable names

Conflicts:
	jbpm-designer-client/src/main/resources/org/jbpm/designer/public/js/Plugins/propertywindow.js

Conflicts:
	jbpm-designer-client/src/main/resources/org/jbpm/designer/public/js/Plugins/propertywindow.js