Support multiple traptor instances on same machine

[jasonrhaas]

Currently, Traptor is set up to only run one "traptor type" per machine (track, follow, location). However, Traptor is an object and we should be able to instantiate many Traptors on the same machine. Problems that need to be solved or investigated:

• settings.py file. There is a "traptor id" field in the settings file that Traptor reads from. In order to have more than one Traptor per machine, this needs to be expanded to handle multiple ids or the id needs to be set elsewhere.
• application restrictions. Need to figure out what we are restricted to do on a single machine. This just involves reading the twitter API docs and doing some testing.

[jasonrhaas]

Looks like we can have two connections per application.