BS-2267
Do not display incompatible expression

Conflicts:
	bundles/plugins/org.bonitasoft.studio.data/src/org/bonitasoft/studio/data/provider/DocumentExpressionEditor.java

Conflicts:
	bundles/plugins/org.bonitasoft.studio.data/src/org/bonitasoft/studio/data/provider/DocumentExpressionEditor.java