exclude the `swift2` branch from travis builds, until travis supports xcode7 (still in beta as of this commit)
exclude the `swift2` branch from travis builds, until travis supports xcode7 (still in beta as of this commit)

ovenbits/ModelRocket,ovenbits/ModelRocket,alessandrostone/ModelRocket,carabina/ModelRocket,colemancda/ModelRocket,carabina/ModelRocket,augmify/ModelRocket,colemancda/ModelRocket,augmify/ModelRocket,alessandrostone/ModelRocket,alvinvarghese/ModelRocket,alvinvarghese/ModelRocket