Added documentation on interactive startup/shutdown callbacks
Added documentation on interactive startup/shutdown callbacks

Origen-SDK/origen,chrisnappi/origen,priyavadan/origen,priyavadan/origen,priyavadan/origen,Origen-SDK/origen,welguisz/origen,welguisz/origen,chrisnappi/origen,Origen-SDK/origen,Origen-SDK/origen,chrisnappi/origen,coreyeng/origen,info-rchitect/origen,chrisnappi/origen,priyavadan/origen,info-rchitect/origen,info-rchitect/origen,welguisz/origen,info-rchitect/origen,coreyeng/origen,coreyeng/origen,coreyeng/origen,welguisz/origen