Add rake to the bundle to be able to run 'bundle exec rake gem' in build.
Add rake to the bundle to be able to run 'bundle exec rake gem' in build.

johnbellone/ohai,http-418/ohai,davide125/ohai,cmluciano/ohai,juliandunn/ohai,dreamnite/ohai,n-marton/ohai,numericillustration/ohai,tas50/ohai-1,btm/ohai,higanworks/ohai,numericillustration/ohai,nathwill/ohai,glennmatthews/ohai,btm/ohai,criteo-forks/ohai,sh9189/ohai,bougyman/ohai,phreakocious/ohai,jaymzh/ohai,cmluciano/ohai,Juniper/ohai,bougyman/ohai,acaiafa/ohai,jaymzh/ohai,johnbellone/ohai,dreamnite/ohai,shtzr840329/ohai,http-418/ohai,Fodoj/ohai,375gnu/ohai,mattray/ohai,chef/ohai,jseely/ohai,Juniper/ohai,glennmatthews/ohai,phreakocious/ohai,n-marton/ohai,zshuo/ohai,jbfavre/ohai,shtzr840329/ohai,375gnu/ohai,acaiafa/ohai,criteo-forks/ohai,mattray/ohai,tas50/ohai-1,chef/ohai,adamleff/ohai,jseely/ohai,sh9189/ohai,davide125/ohai,juliandunn/ohai,higanworks/ohai,Fodoj/ohai,jbfavre/ohai,adamleff/ohai,nathwill/ohai,zshuo/ohai