Use RSpec directly in Travis builds
Use RSpec directly in Travis builds

We weren't specifying this explicitly, which meant it was invoking
`rspec` via `rake`. Simplify things by invoking `rspec` directly (and
also fix the borked build).

Change-Id: I8eebef7cb3301e13bab7c0ff7c385a1257202e4e
Reviewed-on: http://gerrit.causes.com/42639
Reviewed-by: Shane da Silva <67fb7bfe39f841b16a1f86d3928acc568d12c716@brigade.com>
Tested-by: Shane da Silva <67fb7bfe39f841b16a1f86d3928acc568d12c716@brigade.com>

brigade/mock_redis,anujdas/mock_redis,batizhevsky/mock_redis,GearboxSoftware/mock_redis,tsubery/mock_redis