Feature/test run models

What this does
---
 - This adds service and syn methods to get test runs
 - This adds a Test Run Model.
 - This adds "syncing" test runs on sync. (Currently just Logs them for now)

Note: This needs a merge or the test run branch on testasaurus's server
(https://github.com/joshpc/testasaurus-server/pull/6)

cc @joshpc  @j-mutter