Added --continue option, which attempts to continue after a test example is aborted with a keyboard interrupt.  To kill it, press ctrl-z and then kill it manually.
Added --continue option, which attempts to continue after a test example is aborted with a keyboard interrupt.  To kill it, press ctrl-z and then kill it manually.

svn/trunk@7761

nltk/nltk,nltk/nltk,nltk/nltk