0.17.1 2009-11-17
* Index ordering fix
* Notice to install mongo_ext

0.17 2009-11-16
* Performance improvements
  * large document inserts twice as fast as 0.16
  * queries 18% faster than 0.16 on average
  * see benchmark comparison: http://gist.github.com/236062
* Support for multi-update for Mongo >= 1.1.3 (See Collection#update)
* Collection#distinct
* Connection#copy_database (voodootikigod)
* C optimizations for ByteBuffer#to_s and ObjectID#generate (seancribbs)
* Continue code restructuring for performance and simplicity.