working on guide for choosing colormaps. Have overview section and start on a few others.
added colormaps guide to beginner guide
some more text to colormaps
Merge pull request #3235 from jenshnielsen/more_warnings

Silence some more warnings
Use the interpolation parameter in make_thumbnail
Merge pull request #3295 from WeatherGod/make_thumbnail_fix

Use the interpolation parameter in make_thumbnail
Quiver3d fixes

* numpy 1.6 does not support 3+ arguments for meshgrid
* actually use the sanitized data (fixes broadcasting issue)
* use argi through-out the function
* don't fail on zero flow, just don't draw a quiver
MNT : better error handling on determining gs version

If we fail to parse the version string return (0, 0) to let
the code for dealing with out-of-date versions of gs handle
the case of not installed.
added a bunch of stuff to my colormap info
Merge pull request #3284 from tacaswell/cbook_bxpstats_fix

BUG : fix  _reshape_2D bug with [(n, 1), ..] input
Merge pull request #3300 from WeatherGod/mplot3d/quiver_test_fix

Quiver3d fixes
finished up draft
Merge pull request #3277 from tacaswell/gs_check

MNT : better error handling on determining gs version
Check for GhostScript in this test which needs it
Merge pull request #3302 from jenshnielsen/checkdep_ghostscript

Check for GhostScript in this test which needs it
BUG : restore allow_rasterization on PolyCollection

The was accidentally removed as part of
b8726d09026ba7507d8501de0fbd921ec2d1243e

Closes #3299
Merge pull request #3306 from tacaswell/polycollection_allow_raster

BUG : restore allow_rasterization on PolyCollection
TAG : version bump to 1.4.0rc2
version bump
Fix MatplotlibDeprecationWarning: The "loc" positional argument to legend is deprecated