Remove version for ruby-2.1.1 package in bootstrap
Remove version for ruby-2.1.1 package in bootstrap

Remove version for ruby 2.1 when building bootstrap img

Change-Id: Ib095179e186ee35e00174f68449a019726d8e56a

SergK/fuel-main,ddepaoli3/fuel-main-dev,zhaochao/fuel-main,Fiware/ops.Fuel-main-dev,dancn/fuel-main-dev,AnselZhangGit/fuel-main,Fiware/ops.Fuel-main-dev,teselkin/fuel-main,dancn/fuel-main-dev,teselkin/fuel-main,SergK/fuel-main,ddepaoli3/fuel-main-dev,teselkin/fuel-main,huntxu/fuel-main,eayunstack/fuel-main,teselkin/fuel-main,dancn/fuel-main-dev,dancn/fuel-main-dev,eayunstack/fuel-main,huntxu/fuel-main,Fiware/ops.Fuel-main-dev,AnselZhangGit/fuel-main,huntxu/fuel-main,eayunstack/fuel-main,Fiware/ops.Fuel-main-dev,SmartInfrastructures/fuel-main-dev,AnselZhangGit/fuel-main,zhaochao/fuel-main,SmartInfrastructures/fuel-main-dev,ddepaoli3/fuel-main-dev,stackforge/fuel-main,zhaochao/fuel-main,zhaochao/fuel-main,ddepaoli3/fuel-main-dev,SmartInfrastructures/fuel-main-dev,SergK/fuel-main,SmartInfrastructures/fuel-main-dev,stackforge/fuel-main,zhaochao/fuel-main,AnselZhangGit/fuel-main,stackforge/fuel-main