numpy (>= 1.13)
scipy (>= 0.19)
cython
astropy (>= 2.0)
mpmath (>=1.0.0)
roman (>=2.0.0)
lmfit (>=0.9.7)
flake8
coveralls
colorama

numpy (>= 1.13)
scipy (>= 0.19)
cython
astropy (>= 2.0)
mpmath (>=1.0.0)
roman (>=2.0.0)
lmfit (>=0.9.7)
flake8
coveralls
colorama
matplotlib

Add matplotlib to code test requirements.
Add matplotlib to code test requirements.

Hopefully we're not going to test plotting on Travis, as that'd
require some more tinkering.
