Do a block_given check on import so you can call it w/o a block
Do a block_given check on import so you can call it w/o a block

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