Update gems
Update gems

Diffs:

https://diff.coditsu.io/gems/redis/4.1.3/4.1.4
https://diff.coditsu.io/gems/rspec-core/3.9.1/3.9.2
https://diff.coditsu.io/gems/rspec-support/3.9.2/3.9.3

barsoom/pipeline,barsoom/pipeline,barsoom/pipeline,barsoom/pipeline