Rename builds to jobs and so forth in the tests
In !11407 (merged) we did:
- Rename the controller
- Update route helper calls
- Update the URLs
However we still have a few tests, including paths and description, and variable name, referring to build or builds. Let's rename all of them next. Also, renaming build to job in tests has the advantage that we no longer override build method from factory_girl. This is sometimes important, otherwise we can't use the method.
We might also want to rename some JavaScript files and functions.