SciTools/cartopy — pull request #456 by perrette (2014-07-06 16:40:25+00:00)
Title: Fix issues #339 and #455 (stereographic projections)

- added scale_factor to Stereographic projection.
- warnings when true_scale_latitude is used with non-polar
stereographic projections
- test_stereographic extended

See Issues #455 (and #339) for details.