Add a falkor flag for matching tests against a pattern

Hello @x-ma, 

Please review the following commits I made in branch 'nick-testcase'.

1581a23e33b1ad33d183a46af2c9fe4bd735d415 (2014-01-28 15:43:47 -0500)
Add a falkor flag for matching tests against a pattern

R=@x-ma