Allow test runs to be created and run via REST requests
Get started on the ability to specify SIP ports

Add the correct fields and methods to TestRun
Add a database migration for the changes
Start on the view logic for the new field
Connect the views, controllers, and worker to the user-specified ports database model
Add a default of random ports and add some specs
Make the local_ports_array= method more readable
Merge pull request #2 from wdrexler/feature/specify-sip-ports

User-specified SIP ports