matplotlib Code

Pass w3c validation.

applied manuels artist rst patch

fixed doc link

Make transforms.nonsingular handle inf and nan sensibly.
Without this, trying to plot a line with all data masked would
raise an exception via the autoscaling.

fix error in sidebar

finished the first cut at the examples for search support

More docs progress.

fixed sidebar confict

Fix encoding in these files. unicode_demo.py was in latin-1, though the coding marker said utf-8 (someone's editor didn't listen... ;) tex_unicode_demo.py was converted to utf-8 to be Sphinx compatible.

fixed gen_rst header