Minimizes complexity in experimental loader

* Get some of that sweet sweet 4.0 Code Climate goodness
Experimental loader: more refactoring

* Readabililty improvements
* Beefs & cleans up spec coverage (was forgetting a test that an admin
  experiment is not automatically removed when synced)
The log file should not be checked in
Little clearer
Merge pull request #38 from howaboutwe/refactors_experimental_loader

Minimizes complexity in experimental loader