Open/close a socket per point. We were doing persistent HTTP requests,
but the socket isn't closing correctly, which causes 5-second requests.

The fact that we're using HTTP (instead of HTTPS) means the persistent
connection isn't as vital as with SSL (because establishing a connection
isn't as painful), but still it's something we
should revisit.
Merge pull request #5 from plainlystated/fix_5_second_writes

Open/close a socket per point. We were doing persistent HTTP requests,