This PR introduces several changes in CTS.

- RegistryManager works with instance and not class. So CTS can be used as an OSGI lib
- CTS tests have refractored. All tests implement only one class  that contains all necessary methods (Factory, RegistryManager...)
- A RegistryException has been added to throw correctly the error message
-Consequently the CTS version has been updated from 1.1 to 1.2
Improve the registryexception managment.
Merge with the last @mukoki pr
Remove unused file and improve exception managment.
Better exception managment when a CRS is buiild
Fix merge and update pom to 1.2.1
Fix merge and update pom to 1.2.1
Merge pull request #41 from ebocher/cts_newregistrymanager

Cts newregistrymanager