fix #1063 -- get Markdown to output <pre>

Outputs code in a reST-like style.

Also fixes Markdown extension support.

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
this is useless now (and it never really worked)

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
listings needs a fix, too

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
fix the tests

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
support Python 2.6.9

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
flake8 & co.

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Merge pull request #1281 from getnikola/fix-1063

fix #1063 -- get Markdown to output <pre>