[Pending tests to run] Faster Zeus RSpec startup

**Problem** 

There was some annoying delay (around 6 seconds) when starting `zeus rspec` or autorunning tests with `guard`. This was because before suite hook, which loaded default test data to database.

**Solution**

As with cucumber, the test data is now loaded on zeus startup.

**What needs to be done before merging**

Wait for Travis tests to pass. If ok, then merge.