Add rake constraint to prevent rspec breakage
Add rake constraint to prevent rspec breakage

mitchellh/vagrant,taliesins/vagrant,justincampbell/vagrant,gitebra/vagrant,sni/vagrant,jtopper/vagrant,bdwyertech/vagrant,mwrock/vagrant,justincampbell/vagrant,marxarelli/vagrant,benh57/vagrant,justincampbell/vagrant,mitchellh/vagrant,mwrock/vagrant,PatrickLang/vagrant,taliesins/vagrant,bryson/vagrant,bdwyertech/vagrant,PatrickLang/vagrant,crashlytics/vagrant,jtopper/vagrant,mwrock/vagrant,benh57/vagrant,chrisroberts/vagrant,taliesins/vagrant,marxarelli/vagrant,jtopper/vagrant,bryson/vagrant,bdwyertech/vagrant,mwrock/vagrant,marxarelli/vagrant,sni/vagrant,jtopper/vagrant,gitebra/vagrant,chrisroberts/vagrant,marxarelli/vagrant,bshurts/vagrant,PatrickLang/vagrant,mitchellh/vagrant,sni/vagrant,gitebra/vagrant,crashlytics/vagrant,mitchellh/vagrant,bshurts/vagrant,bryson/vagrant,bdwyertech/vagrant,chrisroberts/vagrant,benh57/vagrant,sni/vagrant,bshurts/vagrant,crashlytics/vagrant,bryson/vagrant,bshurts/vagrant,chrisroberts/vagrant,taliesins/vagrant,gitebra/vagrant,PatrickLang/vagrant,justincampbell/vagrant,benh57/vagrant,crashlytics/vagrant