Clean up gemspec
Clean up gemspec

Change-Id: I11295b46a7e4fc83bdaec95a7da0d4b406446ac6
Reviewed-on: http://gerrit.causes.com/37005
Reviewed-by: Shane da Silva <6f6e68d1df92f30cb4b3ce35260ddf94a402f33d@causes.com>
Tested-by: Shane da Silva <6f6e68d1df92f30cb4b3ce35260ddf94a402f33d@causes.com>

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