PLINK-130 move DefaultPartitionManager to correct module
Merge branch 'merge/PLINK-130' of github.com:picketlink/picketlink into merge/PLINK-130

Conflicts:
	modules/idm/api/src/main/java/org/picketlink/idm/config/AbstractIdentityStoreConfiguration.java
PLINK-130 refactor RelationshipPolicy
PLINK-130 refactor StoreSelector interface
[PLINK-130] - Merging latest changes. Fixing compilation and checkstyle errors.