only update rubygems on jruby thanks to @mpapis
only update rubygems on jruby thanks to @mpapis

mlinfoot/refinerycms,mojarra/myrefinerycms,KingLemuel/refinerycms,sideci-sample/sideci-sample-refinerycms,Eric-Guo/refinerycms,anitagraham/refinerycms,johanb/refinerycms,gwagener/refinerycms,kelkoo-services/refinerycms,bryanmtl/g-refinerycms,aguzubiaga/refinerycms,bricesanchez/refinerycms,refinery/refinerycms,LytayTOUCH/refinerycms,simi/refinerycms,refinery/refinerycms,kappiah/refinerycms,mabras/refinerycms,gwagener/refinerycms,gwagener/refinerycms,refinery/refinerycms,mobilityhouse/refinerycms,mlinfoot/refinerycms,mobilityhouse/refinerycms,stefanspicer/refinerycms,Retimont/refinerycms,mabras/refinerycms,kappiah/refinerycms,mkaplan9/refinerycms,johanb/refinerycms,chrise86/refinerycms,mlinfoot/refinerycms,stefanspicer/refinerycms,hoopla-software/refinerycms,mojarra/myrefinerycms,LytayTOUCH/refinerycms,chrise86/refinerycms,simi/refinerycms,trevornez/refinerycms,Retimont/refinerycms,aguzubiaga/refinerycms,stefanspicer/refinerycms,kappiah/refinerycms,hoopla-software/refinerycms,hoopla-software/refinerycms,louim/refinerycms,mkaplan9/refinerycms,trevornez/refinerycms,simi/refinerycms,KingLemuel/refinerycms,sideci-sample/sideci-sample-refinerycms,chrise86/refinerycms,KingLemuel/refinerycms,bryanmtl/g-refinerycms,johanb/refinerycms,mkaplan9/refinerycms,kelkoo-services/refinerycms,LytayTOUCH/refinerycms,bricesanchez/refinerycms,simi/refinerycms,anitagraham/refinerycms,trevornez/refinerycms,Eric-Guo/refinerycms,louim/refinerycms,mabras/refinerycms,anitagraham/refinerycms,aguzubiaga/refinerycms,Eric-Guo/refinerycms,Retimont/refinerycms