BACKWARDS INCOMPATIBLE CHANGES:

* Using $BASEDIR to pass the location of the repo hasn't worked for a
  while. It has been removed.  Simply cd into the vcs repo before
  running a command.
BUG FIXES:
* .gitignore was being created in subdirectories instead of VCS root.
MINOR CHANGES
* _blackbox_common.sh: Replace change_to_root with change_to_vcs_root
* confidence_test.sh: Added more assertions and tests.

Remove irrelevant error check

Remove irrelevant error check

Remove irrelevant error check

- Add blackbox_list_files to RPM and MacPorts packages.

- Makefile should not require DESTDIR variable.

Clean up MacPorts configuration

Clean up MacPorts configuration

Update README.md

Update README.md