added screed and read_parser streaming testing

Marked as known failing since they currently fail.
Will investigate.

Relevant to #393, #654
On Thu, Nov 13, 2014 at 07:24:05AM -0800, bocajnotnef wrote:
> >      """
> > +    return
> > +
> > +    mode = os.stat(file_path).st_mode
> > +    # block devices will be nonzero
> > +    if(not S_ISBLK(mode) == 0):
> 
> Ah. Will that still work if S_IS{FIFO/BLK} returns a negative? (Not that I know it will, the docs just say it will return 'non-zero')

If only there was a way to find out!

(short answer: yes, all non-zero integers evaluate to True.)

--titus
-- 
C. Titus Brown, ctb@msu.edu