Add description field to Range
Migrate range comment as description
Add help_text to Range.description
`name` = first 50 chars of first line of comment

Still put the entire comment in `description`.
Add migration
Modify stringifiers; add 'name' to detail view
Move 'name' column to the left of 'range' column
Remove migration (it's out of date)
Merge branch 'master' into range-comments

Conflicts:
	cyder/cydhcp/range/models.py
	cyder/management/commands/dhcp_migrate.py
Integrate new Range.__unicode__
Fix a couple things
Merge pull request #415 from drkitty/range-comments

Migrate range names and descriptions