cleaned up some sources
added template exception messages, added additional information to service exception, added simple attribute mapping tests for template mapper
added simple property mapping from template to templateTO
half complete test for template property mapping (TO -> BO) considering property type change
template property with single id fields
template property refactored to usage of a embedded key class
cleaned up unnecessary setters around template property id
made template property id nicer
added logic and  test for adding and removing properties from template
cleaned up and corrected tests
added test for equals of template property id
added equals tester applied to template property id
increased code coverage for template module
finished increasement of template data module test coverage (97%)
finalized template mapper tests
template initialization is working
Merge branch 'template-mapper'