begin tests around tokens, create initializer generator
use install generator for both migrations and initializer
set default token lifespan to 2 weeks, make configurable
add expiry to auth header
add config var for batch request throttling
implment batch request buffer
re-migrate
add psql, mysql as dev dependencies for travis
add timestamps for pg + mysql tests
update psql username for travis, add mysql2 gem for travis
remove bogus test
set default 'tokens' value in model (mysql can't handle defaults for text/blob cols)
use string for json "tokens" field
document new features
readme [wip]
add support for disabling updating auth header after each request