Merge pull request #8 from tkrille/exclude_old_groovy_dep_in_pom

[fix] excluded dependency on Groovy 1.X from http-builder
[update] Updated tests and database seed
[task] bumping scim schema version
[test] updated test
[test] fixed and enhanced User creation test
[test] switched to Java/JUnit Test to use some advanced features of
DBUnit Springrunner
[fix] updated dbunit plugin config