Fix requirements.txt clyent=1.2.1
Fix requirements.txt clyent=1.2.1

Installing the dependencies using `pip` fails because `clyent` in version 1.2.2 is not published on PyPI. Version 1.2.1 is the latest version currently available from PyPI ( https://pypi.org/project/clyent/#history )
cmawer/pycon-2017-eda-tutorial,cmawer/pycon-2017-eda-tutorial