OSU-Net/cyder — pull request #368 by church29 (2013-09-23 23:25:35+00:00)
Title: Range usage

- Added a range_usage field to the range model
- Range usage is updated in range save method, can disable this for migrations through kwargs
- (% used) is added to ranges str method

#TODO
- Update static interface save method to update its range
- Update static interface delete method to update its range
- Ptr's A records?
- IPv6 usage in Range usage function
- Dynamic range usage