Issue #16 Closed - Added code to check for error condition returned from
the registry
Issue #15 Closed - Added necessary code to add repositoryUniqueId and
hash to meta-data
Added slot for size if not present.
Merge branch 'master' into feature/metadata_fix
Merge branch 'feature/metadata_fix'

Conflicts:
	api/src/main/java/org/openmrs/module/xdsbrepository/impl/XDSbServiceImpl.java
	omod/src/main/java/org/openmrs/module/xdsbrepository/ihe/iti/actors/impl/XdsDocumentRepositoryServiceImpl.java