Makefile:  use 'make VV=1' to debug dependencies
Makefile:  fix .dir-exists target

Target was just wrong

Keep .dir-exists stamp around to prevent unnecessary rebuilds (I don't
understand intermediate objects; this might be optimized, but probably
not worth spending time)
pbuilderrc:  fixes for hardy build

...but not enough to fix hardy build; autoconf >= 2.62 isn't available
Makefile:  disable broken hardy build

autoconf >= 2.62 required by xenomai, but hardy has 2.61
Makefile:  variable cleanups
Makefile:  variable cleanups
Makefile:  add DEBBUILDOPTS variable to pass in e.g. -j16
Makefile grab bag:

- DEBUG option won't rebuild everything when Makefile, etc. are touched
  - Avoids frustration while hacking
- Basic build dependencies removed to separate target
  - Directory structure
  - Dependencies on Makefile, pbuilderrc, etc.
  - No more mkdir commands in recipes
  - Add DEBUG option to basic deps
- Reorganize and add comments
- Print messages to stdout for better output readability
Build 1.0 format source package for hardy
Makefile:  fix broken DEBBUILDOPTS arg
Makefile:  fix a bunch of broken build deps

...many introduced just today!
noop:  comments in .gitignore
ppa-distributions.tmpl initial checkin; changed location

This was mistakenly omitted from commit f7ac04b6.

Updates to Makefile to reflect new location in 'pbuild' directory.