Remove GitHub gems out of gemspec
Remove GitHub gems out of gemspec

* Let's keep it clean now that we have hack.rip

* Bump Bob & Bobette version requirement

erik-escobedo/integrity,integrity/integrity,faradayio/ci1,erik-escobedo/integrity,forresty/integrity,factorylabs/integrity,faradayio/ci1,p/integrity,p/integrity,factorylabs/integrity,dkastner/prism_ci,integrity/integrity,integrity/integrity,forresty/integrity