BLD: use current version of pytz in numpy_dev_master build
BLD: use setuptools==2.2, wheel==0.22, pip==1.5.4
BLD: ci/speedback/build.sh wheel build script able to run locally (rather
     than remotely on a vagrant machine; needs apt-get deps installed first)
BLD: move wheel hosting URL to pandas.pydata.org
TST: remove scikits-timeseries from tests as wheel building is an issue