BZ1106469 - Project authoring is getting significantly slower with increasing number of packages and rules
BZ-1113507 - When saving, user sometimes gets 'data model updated' Error modal (edit)
Merge branch 'master' into data-modeller-file-level

Conflicts:
	kie-wb-common-screens/kie-wb-common-data-modeller/kie-wb-common-data-modeller-client/src/main/java/org/kie/workbench/common/screens/datamodeller/client/DataModelerScreenPresenter.java

Cross reference control on file deletion were also added in this commit.