tfpt review /shelveset:testfixes-1;REDMOND\jflam
This fixes a broken test in run0 (test_dir.rb) which had a dependency on
the existence of environment variables that may not exist on local
developer machines.
It fixes the performance degredation in spec_runner.rb
It also fixes a number of specs that broke when we changed how
directories were traversed by spec_runner.
Thanks,
-John