added yaml to gemspec
added yaml to gemspec

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