Add various patches to integrate gpsbabelfe better into Debian.

Add various patches to integrate gpsbabelfe better into Debian.

- Submitting statistics data should be opt-in instead of
  activated by default
- Disable check for newer versions. apt-get/aptitude takes care of that.
- Disable check for version differences between gpsbabelfe and gpsbabel.
  The check did not work as expected and dpkg ensures there is no
  difference.