20100416 - version 3.7

Changes:
- Changed dummification procedure to better reflect data protection laws
- Introduced NRTM version 3
- Added foreign key and dummification information to the schema definition XML files
- Various minor bugfixes

Installation notes:
- Change nrtm version from 2 to 3 during installation to make use of the new nrtm protocol


Merged:
- feature-agoston-nrtm_nichdl_removal
- mntner_text_change


Affected stakeholders:
- NCC Services WG
- DB WG
