[Review] Request from 'schubi2' @ 'yast/yast-bootloader/review_140808_default_activate_value'

Please review the following changes:
  * 3e30d3c packaging
  * 9ebca4f taking default value true for activate

to be honest, for me strange part is why this is excluded - https://github.com/yast/yast-bootloader/blob/master/src/modules/BootCommon.rb#L451 for grub2