SMPPServerSession.setEnquireLinkTimer has no effect

[AndrewBourgeois]

Using setEnquireLinkTimer on aSMPPServerSessioninstance has no effect and theenquire_link` PDU will still be sent every 5000 milliseconds (the default value).

FYI: It works fine for SMPPSession.

AFAIK the BoundStateListener of the SMPPServerSession class could be updated just like it was done for the SMPPSession to add the SO_TIMEOUT.