DimCoord CML circular flag.
abf for 32-bit arch
lamb/polar coord untis
BUG: Fix broken test result TestAtlanticProfiles

This commit increases the graphic tolerance this specific tests.
Visual comparison of the test failure has been made and confirmation
that it is correct.
ENH: Allow cube slicing by dimension index

Currently only coordinates can be used to slice a given cube.  Since
coordinates are not allways associated with dimensions of a cube, the
ability to specify dimension and or mix of coordinate and dimension is
added here to facilitate use.
ENH: working animation of cubes

This enhancement adds a wrapper for animating an iterator of cubes.
This is an experimental feature as the API is likely prone to change.