Added start of DynamoDB-backed manager, and more db tests (mainly copied
from the old Boto tests). De-coupled a few commonly used functions and
variables to make them re-usable in multiple managers, as well as made
an abstract Manager class and Converter classes.
Ajax sessions now store the user's username rather than id to make caching easier and more consistent with other auth methods.
Merge branch 'develop' of ssh://github.com/boto/botoweb into develop
getCachedUser now uses the configured user class rather than just User
set_cache() and set_user_class() now called in __init__.py
moved cache and userclass setup into set_env
User.load_auths only queries sdb if the user has any auth_groups
Fixed User.from_dict
Merge branch 'develop' of github.com:boto/botoweb into develop
Prefer simplejson when it is available.
Merge branch 'develop' of github.com:boto/botoweb into develop
Added optional submission of exceptions to NewRelic if configured