Establish proper workflow w bundle package + bundle install.

make-dist now creates the bundle using 'bundle package', the
rpm files for Fedora ande install scripts for ubuntu installs
using 'bundle install'. This is the way bundler is intended to
work.

Bugs: bundler requires that shipped packages are built, altough
this is done in target system anyway. bundler also downloads
git gems from repo despite that they are already in cache on
target system.