Upgraded to Python 2.5

I just got done installing Python 2.5 and converting the trip planner code to use it instead of 2.4. The only required change was pointing the “dispatch” file at the 2.5 executable. No other changes to the code were required to make it run on 2.5.

A few little things also got cleaned up, and I updated to the latest versions of MySQLdb (1.2.2b3) and simplejson (1.5).

Hopefully nothing will blow up.