[hash] Added HashInputValidator to check md5 and sha-1 input, based on hash.type
[master] Improved validation of UserParameters
[master,distributed,hash] Improved UserParameter and Validator API
	* Fixed problem with wrong order of validation
	* Ingeger -> Integer
	* Added Extended Description for UserParameters
[distributed] fixed Handling of Strings as inputdata for IntegerUserParameter
[testdist] new Message(..) => Message.create(..)