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
Add dateutil kwargs to csv2rec

Fixes ambiguous date problems between US/UK date conventions.
Make loc come after fontdict in set_title. Closes #1759
axes3d's set_title sould return the Text object
Also needed to swap the arguments in docstring
Also need to fix the title() docstring in pyplot.py
MEP10 - refactored hlines and vlines documentation
Modified hline and vline examples to have only one file and linked them to the documentation
DOC mentions kwargs in vlines and hlines
DOC didn't render properly
MultiCursor with optionnal horizontal bar
Remove comment in example and use extended example
document the small API change
Fix #1799: path collections with NaNs in the path cause exceptions in vector backends.
Merge pull request #1799 from mdboom/issue1799

Corrupt/invalid PDF and EPS files when saving a logscaled plot made with negative values
Improved test_triinterp_colinear.
Merge pull request #1817 from ianthomas23/improved_triinterp_test

Improved test_triinterp_colinear
Merge pull request #1811 from davidtrem/multicursor

MultiCursor with additionnal optionnal horizontal bar