Version -> +
Style
Require Tornado 3 and drop Python 2.5
Support Tornado 3 Futures in AsyncResult
Start a rewrite for to use Futures and match Tulip's API.
Make Queue.maxsize a property
Give up for now on using Lock and Semaphore with "with" statement
Lock.acquire() and Semaphore.acquire() can be used with "with" statement
Remove 2.5 from trove classifiers
Continuing rewrite for Tornado 3 and Futures