Analysis Jobs' models and controllers were previously setup.
This commit introduces changes that make the jobs workflow
functionally complete.

Also included is a comprehensive suite of API level specs that
simulate and tests many full-lifecycle scenarios of the analysis
jobs system.

This is a combination of 14 commits that were squashed when
cleaning up this work.

- Integration test defintions for AnalysisJobs/Items
- Started implementing tests
- Implementation work
- Got :new integration tests working
- Made a fake resque job
- Made job notification emails
- Fixed faulty update_status_timestamps method and fixed associated tests
- Hardened state transition test for AnalysisJobsItem
- more work on processing stage
- almost got prepare  working
- Begun adding aasm workflow to analysis_jobs_items
- Got most of processing tests working
- Added extra scripts field to support arbitrary options for analysis_action
- Work on processing analysis_jobs_items
- Fixed strong params definition for both AnalysisJobs and AnalysisJobsItems
- 75% of unit tests complete
- Added timecop for micking time in tests (later removed this gem as well - it wasn't needed)
- All creating an analysis job request specs now work! 🎉
- Added support for deleting analysis jobs. Analysis jobs can only be deleted when their status is processing, suspended, or completed.
- Also added tests for AnalysisJobs and AnalysisJobsItems

Changed strong params from :log to :raise for DEV and TEST environments
in a previous commit. Now fixed up the related tests.

The mege conflict in ef0155e was
massive. For clarity split commit into two parts, the basic merge
conflict, and then the bugs that it produced (only exposed when running
tests).

- WARNING: Strong params now throws an exception for all parameter
payloads in dev an test. However, payloads with invalid params will
simply be filtered out in staging and production environments.
- Fixed bug in `rails_helper.rb` which did not reseed the database after
truncating it in request specs
- Updated version of acts_as_paranoid no longer adds unecessary
parentheses - fixed hard coded SQL tests
- Made the `permissions_controller.rb` tests more robust to strong
params hardening. They will now work even when
`action_on_unpermitted_parameters` is set to `:raise`