Changes
** Bug
* [PHP-1155] - php_mongo_io_stream_read() should revert to default_socket_timeout if socketTimeoutMS was zero
* [PHP-1156] - Use default and block indefinitely for zero and negative connect/socket timeouts, respectively
* [PHP-1158] - Driver emits warnings after setting connectTimeoutMS
* [PHP-1220] - Client doesn't find Primary after election
** Improvement
* [PHP-1154] - Make connect/read timeouts for blocking and defaults consistent
** Documentation
* [PHP-1157] - Fix documentation for MongoCursor::timeout() default
* [PHP-1159] - Document that users may need to copy libsasl.dll to lib path for Windows installs
* [PHP-1162] - Update documentation for MongoLog constants
* [PHP-1167] - Clarify that $snapshot only prevents duplicates in documentation
* [PHP-1216] - Clarify that RS connections to non-canonical hostnames are not kept