fixing xhtml_serializer_spec
fixing hal_json_spec: instead of artificial update-drd/create-drd descriptor: properly templated url based on parameters speficied in resource_descriptor
fixing json_home_spec
removed drds_hale_json helper
removed hale_json serializer and hale_json_spec as outdated
removed hale_json from media_type.rb
Merge pull request #161 from mdsol/crichton_refactoring_fixing_specs_serialization

crichton refactoring: fixing specs and serialization