X.509 AA huge refactoring

- Support for VOMS legacy requests and responses.
- Updated voms-configure to introduce x.509 AA configuration
- Added missing license files
Execution time stats collection for AC endpoint.
Use the right configuration properties for service cert
and key.
fallback to internal legacy port for vomses generation

if voms core configuration is skipped, refer to internal legacy
connector for vomses generation
correctly handle rest request with empty fqans.
Init script status function changed to provide information usable by the bdii info provider
Updated AC stats processing.

Stats cleared up according to task execution period.
Support for enabling legacy FQAN encoding.
Fix for https://issues.infn.it/jira/browse/VOMS-415
Transition to VOMSSecurityContext.
Merge branch 'master' of github.com:italiangrid/voms-admin-server
Handle fqan format issues in resolving gas.
Fix formatting issue that caused double inclusion of compulsory group
membership.
Fixes  https://issues.infn.it/jira/browse/VOMS-416

And other refactorings.
Fixed spacing and parameter quoting.
Fixed war packaging in production profile

The war target must be kept in sync among development and production profiles.
Fixes serialization of error message string.
Fixes https://issues.infn.it/jira/browse/VOMS-420
default ac validity to 24h
Fixes https://issues.infn.it/jira/browse/VOMS-440