DEL, HDEL, ZREM commands now return number of keys deleted. fixed #243
separate travis builds for hiredis
apparently hiredis doesn't work with python2.5, so turning off for now
maybe quotes are necessary?
make tox run newest pep8
can reuse the already existing parse_error routine to deal with LOADING errors.
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  can reuse the already existing parse_error routine to deal with LOADING errors.
  make tox run newest pep8
  maybe quotes are necessary?
  apparently hiredis doesn't work with python2.5, so turning off for now
  separate travis builds for hiredis
  DEL, HDEL, ZREM commands now return number of keys deleted. fixed #243