Allow Vagrant to work with newer Rubygems
Allow Vagrant to work with newer Rubygems

Fixes GH-7073

carlosefr/vagrant,crashlytics/vagrant,justincampbell/vagrant,taliesins/vagrant,mwrock/vagrant,mwrock/vagrant,jtopper/vagrant,crashlytics/vagrant,kamazee/vagrant,tomfanning/vagrant,lukebakken/vagrant,signed8bit/vagrant,benh57/vagrant,krig/vagrant,lonniev/vagrant,benizi/vagrant,bryson/vagrant,marxarelli/vagrant,bryson/vagrant,marxarelli/vagrant,vamegh/vagrant,taliesins/vagrant,carlosefr/vagrant,vamegh/vagrant,sax/vagrant,lukebakken/vagrant,gitebra/vagrant,chrisroberts/vagrant,lukebakken/vagrant,PatrickLang/vagrant,mitchellh/vagrant,chrisroberts/vagrant,vamegh/vagrant,lonniev/vagrant,signed8bit/vagrant,bshurts/vagrant,bshurts/vagrant,lonniev/vagrant,kamazee/vagrant,bryson/vagrant,benizi/vagrant,sax/vagrant,gitebra/vagrant,marxarelli/vagrant,benh57/vagrant,sax/vagrant,chrisroberts/vagrant,bdwyertech/vagrant,justincampbell/vagrant,crashlytics/vagrant,vamegh/vagrant,benizi/vagrant,kamazee/vagrant,bdwyertech/vagrant,carlosefr/vagrant,mitchellh/vagrant,tomfanning/vagrant,jtopper/vagrant,bshurts/vagrant,signed8bit/vagrant,sni/vagrant,marxarelli/vagrant,kamazee/vagrant,taliesins/vagrant,justincampbell/vagrant,bshurts/vagrant,sni/vagrant,gitebra/vagrant,bryson/vagrant,krig/vagrant,mitchellh/vagrant,taliesins/vagrant,carlosefr/vagrant,mwrock/vagrant,benizi/vagrant,bdwyertech/vagrant,sax/vagrant,PatrickLang/vagrant,sni/vagrant,mwrock/vagrant,bdwyertech/vagrant,PatrickLang/vagrant,benh57/vagrant,jtopper/vagrant,sni/vagrant,PatrickLang/vagrant,krig/vagrant,mitchellh/vagrant,tomfanning/vagrant,lonniev/vagrant,benh57/vagrant,krig/vagrant,jtopper/vagrant,justincampbell/vagrant,lukebakken/vagrant,chrisroberts/vagrant,tomfanning/vagrant,gitebra/vagrant,signed8bit/vagrant,crashlytics/vagrant