Longer term BCUnit upgrade ideas:

1. Internationalize BCUnit.

2. Signal handling based exception catching for some invalid memory access by
   the group or test case in which case the test case/group execution should be
   terminated and it should proceed with the next test case/group in line.

3. Consider having CU_automated_run_tests take an argument specifying the
   filename root.

4. Run tests in a separate thread, provide mechanism for pausing or halting
   test run.

5. Provide mechanism to parse a source tree and automatically generate a
   test runner to call all suite set-up functions defined in the tree.

6. Windows interface.

7. Make test framework multi-thread safe.  The current dependence on
   static globals without access control will need to be addressed.
