split undo/redo icons into big/normal

        propMinSdkVersion = 16

        propTargetSdkVersion = propCompileSdkVersion

        propVersionCode = 1

        propVersionName = '4.4.29'

        propVersionName = '4.5.0'

        kotlin_version = '1.2.51'

        support_libs = '27.1.1'

    }