Conflicts:
	projects/cadcAccessControl-Server/src/ca/nrc/cadc/ac/server/web/users/GetUserAction.java

Story 1657 rework. Updated based on Brian's review comments. Moved IdentityType to cadcUtil to consolidate its usage.

Conflicts:
	projects/cadcAccessControl/src/ca/nrc/cadc/ac/client/JsonUserListInputStreamWrapper.java

Story ac2. Deleted file with an incorrect lowercase file name. Identical file with JSONUser... already exists.

added GroupDetailSelector so GroupPersistence implementation can configure whether group details should be returned from searches

Conflicts:
	projects/cadcAccessControl-Server/src/ca/nrc/cadc/ac/server/web/users/GetUserAction.java

Story ac2. Added UserClient to perform subject augmentation. Updated LdapUserDAO to add X500Principal. NumericPrincipal is to be added later when it is ready. Fixed UserActionFactory to ignore case when comparing idType.

ac2 rework: add JsonInputter to parse a json String into a DOM, updated JSON readers and writers to use the cadcUtil Json Inputter and Outputter.