matplotlib Code

https://matplotlib.svn.sourceforge.net/svnroot/matplotlib/branches/v0_98_5_maint

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r7027 | astraw | 2009-04-05 15:06:05 -0700 (Sun, 05 Apr 2009) | 1 line

pngsuite test: plot images in grayscale if the input array is 2 dimensional
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r7028 | astraw | 2009-04-05 15:07:01 -0700 (Sun, 05 Apr 2009) | 1 line

read 12 bit PNGs (patch from Tobias Wood)
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r7029 | astraw | 2009-04-05 15:07:34 -0700 (Sun, 05 Apr 2009) | 1 line

trivial: remove trailing whitespace from source code
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r7030 | astraw | 2009-04-05 15:08:24 -0700 (Sun, 05 Apr 2009) | 1 line

trivial: remove outdated comment
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r7031 | astraw | 2009-04-05 15:09:45 -0700 (Sun, 05 Apr 2009) | 1 line

update changelog about Tobias' patch
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