got make simple to work.
update to python27 runtime
updates to get python27 and latest app-engine runtime to work on a new machine.  Not done yet, but some good progress.
tweak timout
start adding memcache in order to be able to eventually pass test 31.

Test 31 is pointing out that the new "eventually consistent" DB needs
memcache in order to have any hope of being performant.
Checkpoint changes to add memcache to contest handling.  Work still in progress.
Snapshot progress...
- update stock-handling code to use memcache
- start on prediction code.
Updated MyUser to use memcache.  [on plane to GB]
snapshot after updating all_contests memcache stuff