Start to update docs for spectral/Spectral change
change spectral to nipy_spectral, leave spectral as alias, update docs
align nipy_spectral_data, double backquotes
Properly passing on horiz-/vertOn to Cursor()

Simple fix to properly pass on the horizOn and vertOn keyword
arguments to the matplotlib.widgets.Cursor constructor.
Autoscaling and limits in mplot3d.

    * Fixes improper setting of x,y,z limits not turning off autoscaling
    * Adds units support to z-axis
    * Adds shared axis support for z-axis
    * Closes #783
A bit of cleanup
delaunay linear_interpolate_grid: enable grid of height/width 1
fixes #997
PEP8 fixes on dates.py
delaunay: test for 1d and 0d grids (fails upstream) re: issue #997
Merge branch 'iss997_test' into iss997_altfix
Update documentation of specgram

Mention that plotted data is in dB
Make Axes.stem take at least one argument.

When it takes only one, the abscissae default to np.arange(len(y))
Add axes.stem call signature test
Update CHANGELOG with axes.stem change
check `ret is False` in Timer._on_timer

The docstring states:

> Functions can return False if they should not be called any more.

Cleanup commit 2f11dee changed this logic,
so any return value whose boolean interpretation is False (e.g. None)
would be unregistered.

fixes #1492
DOC: Update return value units in specgram
add comment to protect against future 'cleanup' of `if ret is False`
test_delaunay: avoid numbers in 1d test, use np.allclose
Merge branch 'iss997_test'
_delaunay.cpp: support [x0:x1:1j] grids even if x1!=x0