Changes
** Bug
* [PHP-308] - Incorrect method declaration
* [PHP-418] - Use descending date order for changelog entries
* [PHP-612] - Impossible to provide a list of tagsets to the readPreferenceTags options
* [PHP-625] - the windows 1.30+ dll MongoCollection findandmodify method will throw a excption which not on linux platform
* [PHP-629] - Missing support for passing the username/password in the $options array
* [PHP-631] - One replica set, but two different db/user/passwords
* [PHP-632] - MongoDB::authenticate() no longer attempts to authenticate, and doesn't return anything either
* [PHP-633] - findAndModify sometimes throws exception on success
** Improvement
* [PHP-317] - slaveOk option not documented in Mongo.__construct()
* [PHP-529] - Document that MongoCollection::save() may set _id
* [PHP-626] - Implement Read Preferences support with sharding.