OP2/PyOP2 — pull request #416 by dham (2014-12-09 10:30:11+00:00)
Title: Fix COFFEE install instructions.

Fix problems with the current COFFEE instructions:

* Move COFFEE from the section which users are told to skip if they
don't want GPUs to the compulsory section.
* Tell ordinary users to pip install COFFEE.
* Move the networkx dependency in with all the other required
dependencies.