build: wip for autotools cleanup (and cmake/win32/etc).
automake: churn.
autotools: add configure options.
autotools: require gcc 4.1 (RHEL 5.10)
autotools: define BSON_OS
build: more work on cleaning up autotools.
Remove duplicate readme and just symblink it during autogen.
and now move the README to README.md
cleanup filenames, more symlinks on autogen.
remove changelog, just touch it for automake.
remove AUTHORS file. just use git.
generate AUTHORS during make dist.
add src subdirectory.
build: cleanup build system, compartmentalize.
tests: track move in src dir.
build: cleanup makefile format.
build: cleanup cflags.
build: more fallout from updated autotools.
build: clean up paths.
build: cleanup AB_SUBST