lots of make improvements: Use certain environment variables better. Don't use
dpkg related stuff in the Makefiles. If you can't find libpython's .a, use the
.so instead of breaking the build.

DESTDIR should actually work :)

Simplify. simpl. sfy.

my first commit! :)

Conflicts:
	cppForSwig/Makefile
	cppForSwig/whereispy.sh