EXOGTN-1442: Exception swallow in UserDaoImpl.persistUserInfo()

Fix description:
	- Rethrow exception from LDAP
	- Process exception in UI layer to detect and display error dialog
EXOGTN-1442: Exception swallow in UserDaoImpl.persistUserInfo()

Fix description:
	- Improve error dialog message while creating new user.
EXOGTN-1422 Fix more case on fail update user attributes
EXOGTN-1442: Exception swallow in saving user

Fix description:
	- Rethrow exception if there is any