agnosticbin: HACK, modify chain function in output tees
agnosticbin: HACK, modify chain function in output tees

This way we can ignore negotiation errors produced by reconfiguration
events. The problem is that if a buffers arrives during the reconfiguration
the elements are nofiying a not negotiated failure and not handling the
situation gracefully

Change-Id: Ica6b4791ccec562605928c4aa7d13470e91179b4

Kurento/kms-elements,TribeMedia/kms-elements,shelsonjava/kms-elements,shelsonjava/kms-elements,Kurento/kms-elements,TribeMedia/kms-elements,shelsonjava/kms-elements,Kurento/kms-elements,TribeMedia/kms-elements