exclude transitive xtext dependencies from xtend.idea.all.jar
[dmodel][validation] Regression: Fixed test setups

Change-Id: I7267e81526ed921eb5400362aee9fab77af66768
use xtext.ide for entities idea example language
Merge "exclude transitive xtext dependencies from xtend.idea.all.jar"
Merge "use xtext.ide for entities idea example language"
Merge "[dmodel][validation] Regression: Fixed test setups"