fix #186
test for #186
include version check for array type casting
oops version check was bad
Merge pull request #187 from rokroskar/dtype_conform

Dtype conform
Removed 'edgecolor' kwarg in streamplot

matplotlib.pyplot.streamplot does not have the 'edgecolor' kwarg.
Merge pull request #194 from mueslo/patch-1

Removed 'edgecolor' kwarg in streamplot
Merge branch 'master' into subfind_hdf