Implemented ports_quark controller
Implemented disassociate_port in quark plugin
Wrote test plan in comments for plugin.update_port
Merge pull request #38 from asadoughi/ports_redo_2

Implemented DELETE /ports/<id>/ip_address/<ip_address_id>
Implemented update_port
Implemented unit tests for Plugin.update_port
Set deallocated to false upon update_port
Implemented Subnet.next_auto_assign_ip for IP address allocation
Added exception for empty body argument to update_port
Fixed integration bugs on update_port
Implemented GET /ip_addresses<.format>?device_id=<device_id>
Fixes a bug in route creation

The subnet_find in the route creation wasn't being passed the keyword
args properly, and the route_create method wasn't returning the newly
instantiated route model.
Merge pull request #40 from Cerberus98/subnet_bugfix

Fixes a bug in route creation
Merge pull request #41 from asadoughi/ip_address_device_id

Implemented GET /ip_addresses<.format>?device_id=<device_id>
Merge pull request #39 from asadoughi/ports_redo_3

Implemented update_port