Log Message:
Update to 1.2.10.

Changelog:
** Bug
 * [PHP-329] - MongoCursorException with Apache while master steps down
 * [PHP-335] - 1.2.8/1.2.9 don't compile with PHP < 5.3
 * [PHP-337] - failover with replicaset
 * [PHP-340] - MongoCursorException - could not determine master
 * [PHP-343] - PHP segfaults when adding a file to GridFS after upgrade to 1.2.9
 * [PHP-344] - Segmentation Fault on $grid->storeFile('foo', $bar)
 * [PHP-346] - getGridFS followed by storeBytes hangs request indefinitely
 * [PHP-349] - MongoCursorTimeoutException causes connections not to close
 * [PHP-351] - php driver doest close connection , when catch cursor
               timed out exception.
 * [PHP-353] - Iterator key not set when _id field is not requested
 * [PHP-361] - Mongo::getHosts() segfaults (at least when not connecting
               to a replica set)
** Improvement
 * [PHP-352] - Return only one element after "iterator_to_array()"
               if exclude "_id" from field list