Created make_package for creating binary package.

Refactor creating binary package from buildbot. Appears to work for
linux. Not tested for cygwin.
Use top_srcdir instead of abs_top_srcdir (more robust).
Merge branch 'baagaard/binary-packaging'

* baagaard/binary-packaging:
  Use top_srcdir instead of abs_top_srcdir (more robust).
  Created make_package for creating binary package.