Remove Manager::executeInsert() usage in ODS docs
Remove Manager::executeInsert() usage in ODS docs

This method was removed prior to 1.0. Fixes #203

jmikola/mongo-php-driver,10gen-labs/mongo-php-driver-prototype,derickr/mongo-php-driver,mongodb-labs/mongo-php-driver-prototype,jmikola/mongo-php-driver,derickr/mongo-php-driver,derickr/mongo-php-driver-prototype,10gen-labs/mongo-php-driver-prototype,derickr/mongo-php-driver,derickr/mongo-php-driver,mongodb-labs/mongo-php-driver-prototype,derickr/mongo-php-driver-prototype,mongodb/mongo-php-driver,jmikola/mongo-php-driver-prototype,mongodb-labs/mongo-php-driver-prototype,10gen-labs/mongo-php-driver-prototype,jmikola/mongo-php-driver-prototype,mongodb/mongo-php-driver,derickr/mongo-php-driver,jmikola/mongo-php-driver-prototype,derickr/mongo-php-driver,derickr/mongo-php-driver-prototype,10gen-labs/mongo-php-driver-prototype,mongodb-labs/mongo-php-driver-prototype,derickr/mongo-php-driver-prototype,mongodb/mongo-php-driver,jmikola/mongo-php-driver,10gen-labs/mongo-php-driver-prototype,mongodb/mongo-php-driver,jmikola/mongo-php-driver,jmikola/mongo-php-driver-prototype,jmikola/mongo-php-driver,mongodb-labs/mongo-php-driver-prototype,derickr/mongo-php-driver-prototype,mongodb/mongo-php-driver,jmikola/mongo-php-driver-prototype