SciTools/iris — pull request #434 by bjlittle (2013-04-04 12:22:53+00:00)
Title: Force mpl v1.2.0 for Travis-CI.

Changes to the latest Matplotlib v1.2.1 is causing image checksum differences within the Iris tests.

This PR restricts Travis to mpl 1.2.0 to sync with the Iris test results.