reassign domain field from dynamic interface to range
migrations associate ranges with domains
Added field for range usage in range model
Added range usage to the display, range usage updates in ranges save method
bind builds for dynamic ranges
Merge branch 'master' into generate_dynamic
add views to ranges and merge conflicting south migrations
update forms and add range views to builds and migrations
Merge branch 'master' of https://github.com/OSU-Net/cyder into Range_Usage

Conflicts:
	cyder/cydhcp/range/models.py
Missed a part of the merge
Static Interface now updates range usage
Only save range if it exists
If range usage does not exist, do not display
Use get model to avoid import recusion
Update range usage on create/delete of ptr
Update range usage on create/delete of a record
Renamed range usage migration
add dns_enabled field to SOAs
remove deprecated build scripts directory, only build enabled SOAs
Merge branch 'master' into dns_enabler