Decrease .wrapper width

This has the effect of making the body text narrower, so that shorter
articles look less short lol
Decrease article body text font-size

See previous commit
Add default email settings to conf.py

Just to prevent errors on startup
Replace dates with "quarters"

So like Winter 2014, etc, etc. So that it seems like there's less of a
hiatus in publishing, lol. Lol. Lol. Just lol