all versions: added an option "--machine" that allows to override the autodetected
  architecture string (e.g. "i386") that becomes part of the binary package name with 
  a different one
- moved the removal of the BASE directory to the end of the make_binary_distribution
  script


scripts/make_binary_distribution.sh:
  - backported and fixed a change from 5.0 for easier building of all versions: added an
    option "--machine" that allows to override the autodetected architecture string 
    (e.g. "i386") that becomes part of the binary package name with a different one
  - moved the removal of the BASE directory to the end of the script