Proposal for issue #20 (logging)

Please give feedback before pulling. Note that the file logging module is gone with this pull, and the logging format has changed.

Sample output from console:

```
2013-01-12 14:06:48,215 (root) Webserver running on: 0.0.0.0:8080 waiting for connections.
2013-01-12 14:06:48,651 (glastopf) Starting Glastopf
2013-01-12 14:06:48,653 (glastopf) Starting Glastopf
2013-01-12 14:06:48,667 (modules.reporting.hp_feed) Connecting to feed broker.
2013-01-12 14:06:48,731 (modules.reporting.hp_feed) Connected to hpfeed broker.
2013-01-12 14:06:51,758 (glastopf) HPFeeds started
2013-01-12 14:06:51,760 (glastopf) Generating initial dork pages - this can take a while.
2013-01-12 14:07:30,781 (glastopf) Glastopf instantiated and privileges dropped
2013-01-12 14:12:03,447 (glastopf) 192.168.1.142 requested GET / on 192.168.1.112:8080
2013-01-12 14:12:03,652 (glastopf) 192.168.1.142 requested GET /style.css on 192.168.1.112:8080
2013-01-12 14:12:03,853 (glastopf) 192.168.1.142 requested GET /favicon.ico on 192.168.1.112:8080
```