fix change-version to be simpler, more powerful, and more portable (multiline sed)
fix change-version to be simpler, more powerful, and more portable (multiline sed)

andreaturli/legacy-brooklyn,neykov/incubator-brooklyn,aledsage/legacy-brooklyn,andreaturli/legacy-brooklyn,neykov/incubator-brooklyn,neykov/incubator-brooklyn,aledsage/legacy-brooklyn,aledsage/legacy-brooklyn,aledsage/legacy-brooklyn,neykov/incubator-brooklyn,aledsage/legacy-brooklyn,andreaturli/legacy-brooklyn,bmwshop/brooklyn,aledsage/legacy-brooklyn,neykov/incubator-brooklyn,bmwshop/brooklyn,aledsage/legacy-brooklyn,bmwshop/brooklyn,andreaturli/legacy-brooklyn,bmwshop/brooklyn,bmwshop/brooklyn,bmwshop/brooklyn,andreaturli/legacy-brooklyn,andreaturli/legacy-brooklyn,andreaturli/legacy-brooklyn,neykov/incubator-brooklyn,bmwshop/brooklyn