Enable to switch off the removal of comments in csv2rec.
PEP8
Fix #1710.  When a font doesn't have glyph names, we should synthesize them.
Fix for Python 3
Merge pull request #1710 from mdboom/font_with_no_glyph_names

Mixing Arial with mathtext on Windows 8 fails
Merge pull request #1699 from gatagat/fix_csv2rec_comments

Enable to switch off the removal of comments in csv2rec.
Merge remote-tracking branch 'upstream/v1.2.x'
PEP8 fixes on the figure module