Merge pull request #17 from escherba/pf_interface_refactor

refactor interface to be close to that of MRJob
Merge pull request #18 from escherba/pf_interface_refactor

update README
Merge pull request #19 from escherba/pf_interface_refactor

show traceback of exceptions in worker processes
Merge pull request #20 from escherba/pf_interface_refactor

this is python
Merge pull request #21 from escherba/pf_interface_refactor

add basic protocol support
Merge pull request #22 from escherba/pf_interface_refactor

fix bug that would cause mapper counts not to be written when combiner i...
Merge pull request #23 from escherba/pf_interface_refactor

do not default to stdin in reducer
Merge pull request #24 from escherba/pf_interface_refactor

version bump