Use self rather than node as appropriate
Make allocating IPs a bit easier on the eyes.

This removes the Free IPs section of the network page. This also turns
the static text display for an IP, into an form input to allow
allocating arbitrary IPs.
Add paging support for networks
Order networks/ips by address
Create basic CRUD for IP addresses
Only display network actions if the user is admin
Merge pull request #34 from optopus/feature/network-improvements

Make the network section more useful
Use location_name method to index location
Support query logging with ActiveRecord
Support mixins for Optopus::Network and Optopus::Address
CRUD for properites on networks and addresses.

This makes it easy to add/remove/update properties on individual
networks and addresses.
Override IPAddr initialization to support shorthand
Perform basic query optimizations.

This adds indexes for the most commonly used columns. We also eager load
where appropriate to lower the amount of queries.
Remove network usage on networks view for speed
API routes to update networks and interfaces.

This allows a way to update what networks are stored and to update
interfaces with IP addresses.
Fixed submit button being outside the form.
Merge pull request #36 from optopus/form/fix-submit-buttom

Form/fix submit buttom