Install test_rcparams.rc so tests pass when installed.

Author: mdboom

setup.py

@@ -120,6 +120,7 @@ def chop_package(fname):
     baseline_images = [chop_package(f) for f in baseline_images]
     package_data['matplotlib'].extend(baseline_images)
     package_data['matplotlib'].append('tests/mpltest.ttf')
+    package_data['matplotlib'].append('tests/test_rcparams.rc')
 
 if not check_for_numpy(__version__numpy__):
     sys.exit(1)