Removed deprecated custom season categorisation functions.
Fixed iris.util.array_equal to avoid issues with fully masked arrays
pp 365 day cal

rev
Review actions
grib2 wind direction
BUG FIX: Serialize collapsed coordinates by datatype, not units

This fixes a bug introduced by #847, which is encountered when attempting to
collapse along a dimension coordinate with unknown units. In such a case, the
coordinate value is converted into a string, which fails for dimension
coordinates because dimension coordinates must be numeric.

In contrast, this new patch chooses how to serialize a collapsed coordinate by
its datatype instead of its units. String point values are joined by '|',
whereas all other point values (which are presumed to be numeric) are replaced
by the mean.
Removed deprecated shortname categorisation functions.
Changed default names in some categorisation functions.

The deprecation period for default name changes has ended and the
new names are now defaults and warnings are removed.
Removed tests for categorisation function deprecations.
Added MPL version check to matplotlib.path.wedge workaround
Removed axes from test_cloud_cover to make test mpl version agnostic
Wedge fix based on behaviour not on mpl version
Review actions - tests on vertices writeable flag
Merge pull request #936 from dkillick/mpl_path_wedge

Updated wedge fix in symbols.py
Updated copyright notice.
Merge pull request #903 from ajdawson/season-deprecations

Remove deprecations from coord_categorisation module
Modifications to interpolate.py for move to SciPy 0.13.2
Merge pull request #915 from marqh/pp365

pp 365 day cal
Docstring edits for _interp1d_rolls_y
Set pandas version to 0.12.0