Control the removal of directories from within the project in order to avoid too many PRs for cf-release
https://www.pivotaltracker.com/n/projects/997278/stories/67714674
Reapplying the DDL to postgres to bring legacy databases up to date requires that we do it without a transaction.

Conflicts:

	common/src/main/resources/spring/data-source.xml
Bump hotfix version to 1.5.4.1
Merge branch 'hotfix/1.5.4.1' into develop

Conflicts:
	common/pom.xml
	common/src/main/resources/spring/data-source.xml
	pom.xml
	samples/api/pom.xml
	samples/app/pom.xml
	samples/pom.xml
	scim/pom.xml
	uaa/pom.xml