first cut at docs, which are work in progress
snapshot after webapp added

- added google application engine webapp files under webapp directory
- configuration parameters moved from __init__ to config
- updated setup to support scripts
- added scripts rcadminconfig, rcuserconfig, rcadminapprove
use configured racedb; issue #18

updates

* use configured racedb to access database, override available with
--racedb switch
* allow passing of racedb password to approved user
* fix issue #18 - when there are ties in the standings, show both
runners at the same placement
* rename update*.py to modify*.py -- for some reason windows didn't like
the "update" name and invoked user access control when these scripts
were executed