Fix loading on Python 3.
Fix encoding for Python 3.
Add support for Reddit on Python 3.
Add support for IRI in Python 3.
Fix title snarfing on Python 3.
Merge remote-tracking branch 'progval/python3'
Merge pull requests reticulatingspline/Supybot-Titler#4 and reticulatingspline/Supybot-Titler#5

- Merged manually since the original PR repository is gone (RIP :( )
Fix Markdown formatting