slight touch of readability

i'm helpening.
Add u-url classname to post permalink anchor

…along with `url` classic fallback for consistency with e-content entry-content.

This change allows me to click through to your posts when reading them in my feed reader http://waterpigs.co.uk/intertubes/feed/

It also clears up one of the indiewebify.me h-entry validator suggestions: http://indiewebify.me/validate-h-entry/?url=http%3A%2F%2Fwerd.io%2F2014%2Fcyclists-of-the-bay-area-heed-my-call
Follow/Unfollow event hooks
Check canRead(), if fail then return 403
403 template
Merge pull request #232 from barnabywalters/patch-1

Add u-url classname to post permalink anchor
Merge pull request #234 from mapkyca/check_canread

Check canread
Merge pull request #229 from noformnocontent/master

Slight touch of readability. Thank you!
Merge pull request #233 from mapkyca/friendevents

Follow/Unfollow event hooks