Added missing Address class entry in persistence.xml
Removed hibernate validation and added gwt-validation library which support both client and server side validation.
Merge branch 'master' of https://github.com/ivailo-pashov/MunicipalityInfrastructureService
Merge branch 'bean_validation'

Conflicts:
	src/com/aacdil/municipality/client/MunicipalityInfrastructureService.java