Revert "core: check for Ruby 2.0"
Revert "core: check for Ruby 2.0"

This reverts commit 9be6b4f0d3fb12ba4d85b54b5afc19f9d7a4c772.

mwrock/vagrant,tomfanning/vagrant,benizi/vagrant,PatOShea/vagrant,modulexcite/vagrant,obnoxxx/vagrant,ferventcoder/vagrant,kamazee/vagrant,iNecas/vagrant,kamigerami/vagrant,myrjola/vagrant,gpkfr/vagrant,aneeshusa/vagrant,sax/vagrant,evverx/vagrant,tschortsch/vagrant,loren-osborn/vagrant,darkn3rd/vagrant,aaam/vagrant,petems/vagrant,lukebakken/vagrant,bshurts/vagrant,justincampbell/vagrant,signed8bit/vagrant,doy/vagrant,PatrickLang/vagrant,jfchevrette/vagrant,blueyed/vagrant,Endika/vagrant,marxarelli/vagrant,blueyed/vagrant,wangfakang/vagrant,apertoso/vagrant,denisbr/vagrant,apertoso/vagrant,Sgoettschkes/vagrant,kamazee/vagrant,ferventcoder/vagrant,Avira/vagrant,janek-warchol/vagrant,tbriggs-curse/vagrant,taliesins/vagrant,gpkfr/vagrant,crashlytics/vagrant,mpoeter/vagrant,carlosefr/vagrant,mwrock/vagrant,TheBigBear/vagrant,mwarren/vagrant,genome21/vagrant,marxarelli/vagrant,rivy/vagrant,muhanadra/vagrant,loren-osborn/vagrant,jfchevrette/vagrant,marxarelli/vagrant,jberends/vagrant,denisbr/vagrant,juiceinc/vagrant,miguel250/vagrant,chrisvire/vagrant,Sgoettschkes/vagrant,benizi/vagrant,apertoso/vagrant,janek-warchol/vagrant,gajdaw/vagrant,taliesins/vagrant,rivy/vagrant,marxarelli/vagrant,chrisroberts/vagrant,gpkfr/vagrant,mpoeter/vagrant,krig/vagrant,nickryand/vagrant,aneeshusa/vagrant,fnewberg/vagrant,bdwyertech/vagrant,carlosefr/vagrant,kamigerami/vagrant,genome21/vagrant,gbarberi/vagrant,sideci-sample/sideci-sample-vagrant,dharmab/vagrant,johntron/vagrant,mitchellh/vagrant,jean/vagrant,johntron/vagrant,benh57/vagrant,cgvarela/vagrant,aaam/vagrant,sax/vagrant,signed8bit/vagrant,gitebra/vagrant,tbriggs-curse/vagrant,wkolean/vagrant,ArloL/vagrant,tknerr/vagrant,iNecas/vagrant,aaam/vagrant,h4ck3rm1k3/vagrant,h4ck3rm1k3/vagrant,bshurts/vagrant,myrjola/vagrant,jean/vagrant,chrisroberts/vagrant,vamegh/vagrant,chrisvire/vagrant,theist/vagrant,mitchellh/vagrant,sax/vagrant,modulexcite/vagrant,theist/vagrant,kamazee/vagrant,wangfakang/vagrant,jkburges/vagrant,wangfakang/vagrant,teotihuacanada/vagrant,aneeshusa/vagrant,gitebra/vagrant,senglin/vagrant,rivy/vagrant,jhoblitt/vagrant,Chhunlong/vagrant,teotihuacanada/vagrant,krig/vagrant,carlosefr/vagrant,bheuvel/vagrant,tomfanning/vagrant,lukebakken/vagrant,benh57/vagrant,muhanadra/vagrant,muhanadra/vagrant,benizi/vagrant,fnewberg/vagrant,miguel250/vagrant,tbarrongh/vagrant,shtouff/vagrant,mpoeter/vagrant,stephancom/vagrant,lonniev/vagrant,patrys/vagrant,mkuzmin/vagrant,denisbr/vagrant,Ninir/vagrant,otagi/vagrant,sni/vagrant,jmanero/vagrant,evverx/vagrant,Avira/vagrant,genome21/vagrant,obnoxxx/vagrant,loren-osborn/vagrant,Avira/vagrant,bdwyertech/vagrant,gpkfr/vagrant,sax/vagrant,benizi/vagrant,philwrenn/vagrant,wkolean/vagrant,gajdaw/vagrant,pwnall/vagrant,philoserf/vagrant,jfchevrette/vagrant,dharmab/vagrant,ArloL/vagrant,juiceinc/vagrant,fnewberg/vagrant,kalabiyau/vagrant,dhoer/vagrant,lonniev/vagrant,crashlytics/vagrant,modulexcite/vagrant,crashlytics/vagrant,tschortsch/vagrant,jtopper/vagrant,tbarrongh/vagrant,dharmab/vagrant,kamazee/vagrant,bheuvel/vagrant,Endika/vagrant,sideci-sample/sideci-sample-vagrant,teotihuacanada/vagrant,bdwyertech/vagrant,PatrickLang/vagrant,channui/vagrant,tschortsch/vagrant,mwrock/vagrant,TheBigBear/vagrant,patrys/vagrant,invernizzi-at-google/vagrant,nickryand/vagrant,senglin/vagrant,signed8bit/vagrant,blueyed/vagrant,darkn3rd/vagrant,Sgoettschkes/vagrant,jtopper/vagrant,kamigerami/vagrant,vamegh/vagrant,PatOShea/vagrant,tomfanning/vagrant,vamegh/vagrant,nickryand/vagrant,jfchevrette/vagrant,jtopper/vagrant,theist/vagrant,mitchellh/vagrant,bryson/vagrant,mwarren/vagrant,taliesins/vagrant,doy/vagrant,sni/vagrant,apertoso/vagrant,dhoer/vagrant,Endika/vagrant,Sgoettschkes/vagrant,PatrickLang/vagrant,clinstid/vagrant,Ninir/vagrant,gajdaw/vagrant,blueyed/vagrant,lukebakken/vagrant,doy/vagrant,aaam/vagrant,chrisvire/vagrant,kamigerami/vagrant,shtouff/vagrant,Chhed13/vagrant,bheuvel/vagrant,lukebakken/vagrant,kalabiyau/vagrant,sideci-sample/sideci-sample-vagrant,wangfakang/vagrant,signed8bit/vagrant,Chhunlong/vagrant,myrjola/vagrant,Avira/vagrant,jhoblitt/vagrant,vamegh/vagrant,philoserf/vagrant,ArloL/vagrant,jmanero/vagrant,patrys/vagrant,invernizzi-at-google/vagrant,philwrenn/vagrant,mwarren/vagrant,aneeshusa/vagrant,p0deje/vagrant,gitebra/vagrant,otagi/vagrant,otagi/vagrant,lonniev/vagrant,jhoblitt/vagrant,rivy/vagrant,krig/vagrant,Chhunlong/vagrant,philwrenn/vagrant,sni/vagrant,krig/vagrant,tknerr/vagrant,dhoer/vagrant,clinstid/vagrant,tknerr/vagrant,crashlytics/vagrant,jberends/vagrant,p0deje/vagrant,bryson/vagrant,bshurts/vagrant,chrisvire/vagrant,philwrenn/vagrant,benh57/vagrant,fnewberg/vagrant,MiLk/vagrant,stephancom/vagrant,chrisroberts/vagrant,denisbr/vagrant,mkuzmin/vagrant,obnoxxx/vagrant,channui/vagrant,tbarrongh/vagrant,lonniev/vagrant,darkn3rd/vagrant,TheBigBear/vagrant,sferik/vagrant,tomfanning/vagrant,ferventcoder/vagrant,stephancom/vagrant,tbriggs-curse/vagrant,patrys/vagrant,ferventcoder/vagrant,zsjohny/vagrant,loren-osborn/vagrant,legal90/vagrant,justincampbell/vagrant,otagi/vagrant,benh57/vagrant,justincampbell/vagrant,johntron/vagrant,clinstid/vagrant,zsjohny/vagrant,nickryand/vagrant,cgvarela/vagrant,taliesins/vagrant,gbarberi/vagrant,p0deje/vagrant,senglin/vagrant,gbarberi/vagrant,chrisroberts/vagrant,dharmab/vagrant,ianmiell/vagrant,mkuzmin/vagrant,bshurts/vagrant,cgvarela/vagrant,ianmiell/vagrant,philoserf/vagrant,bryson/vagrant,MiLk/vagrant,teotihuacanada/vagrant,jmanero/vagrant,ianmiell/vagrant,philoserf/vagrant,h4ck3rm1k3/vagrant,jberends/vagrant,mwarren/vagrant,kalabiyau/vagrant,darkn3rd/vagrant,wkolean/vagrant,dustymabe/vagrant,jhoblitt/vagrant,PatOShea/vagrant,bheuvel/vagrant,Endika/vagrant,ianmiell/vagrant,genome21/vagrant,janek-warchol/vagrant,tjanez/vagrant,jmanero/vagrant,jkburges/vagrant,mitchellh/vagrant,carlosefr/vagrant,jean/vagrant,invernizzi-at-google/vagrant,bryson/vagrant,tjanez/vagrant,petems/vagrant,legal90/vagrant,petems/vagrant,BlakeMesdag/vagrant,jean/vagrant,tbriggs-curse/vagrant,TheBigBear/vagrant,legal90/vagrant,shtouff/vagrant,janek-warchol/vagrant,invernizzi-at-google/vagrant,ArloL/vagrant,sferik/vagrant,legal90/vagrant,zsjohny/vagrant,jkburges/vagrant,dustymabe/vagrant,evverx/vagrant,dustymabe/vagrant,dustymabe/vagrant,stephancom/vagrant,petems/vagrant,tjanez/vagrant,dhoer/vagrant,juiceinc/vagrant,mpoeter/vagrant,modulexcite/vagrant,jkburges/vagrant,BlakeMesdag/vagrant,Ninir/vagrant,Chhed13/vagrant,PatOShea/vagrant,channui/vagrant,MiLk/vagrant,gitebra/vagrant,mkuzmin/vagrant,jberends/vagrant,doy/vagrant,BlakeMesdag/vagrant,muhanadra/vagrant,miguel250/vagrant,gbarberi/vagrant,tschortsch/vagrant,justincampbell/vagrant,tknerr/vagrant,sferik/vagrant,miguel250/vagrant,pwnall/vagrant,tbarrongh/vagrant,iNecas/vagrant,cgvarela/vagrant,wkolean/vagrant,myrjola/vagrant,theist/vagrant,pwnall/vagrant,Chhed13/vagrant,shtouff/vagrant,zsjohny/vagrant,johntron/vagrant,juiceinc/vagrant,bdwyertech/vagrant,sni/vagrant,pwnall/vagrant,tjanez/vagrant,Chhunlong/vagrant,jtopper/vagrant,h4ck3rm1k3/vagrant,Chhed13/vagrant,senglin/vagrant,kalabiyau/vagrant,PatrickLang/vagrant,mwrock/vagrant