Remove recenter functionality from map.rotate()
Change units and direction of rotation
Update the metadata for the rotated coordinate system
Proper rotation of rectangular maps
Update the rotation angle in the metadata, and use by default
Re-implemented recenter functionality
map.rotate() docstring tweaks
Updated map.rotate() tests
Only update the CROTA2 keyword if it already exists
Some PEP8 fixes pulled from another PR to ease merging
Fix existing calls to map.rotate()
Convert input rotation matrix to an array
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Add a landscape badge to the README
Change tests to run in parallel on travis.
Bump pandas version to 0.14
Change the PIP_WHEEL_COMMAND to the newer syntax.
Add a now required pandas dep for 2.6.

see this bug report: https://github.com/pydata/pandas/issues/7284