add documentation about the format of the scheduled arrays
add documentation about the format of the scheduled arrays

Ocramius/phpcr-odm,sarcher/phpcr-odm,AxaliaN/phpcr-odm2,sarcher/phpcr-odm,valiton-forks/phpcr-odm,WouterJ/phpcr-odm,doctrine/phpcr-odm,Ocramius/phpcr-odm,doctrine/phpcr-odm,uwej711/phpcr-odm,uwej711/phpcr-odm,valiton-forks/phpcr-odm,AxaliaN/phpcr-odm2,WouterJ/phpcr-odm