docker/fig — pull request #531 by donovanmuller (2014-10-09 04:46:57+00:00)
Title: Hint to install Python dev package on PyYAML error

Trying to install Fig via `pip`, I was faced with the PyYAML error mentioned.
Following suggestions from this issue [ https://github.com/MeetMe/newrelic-plugin-agent/issues/151#issuecomment-24765184 ] resulted in a successful install.