1. In osrf_stack_transport_handler(): removed the memset() as

1. In osrf_stack_transport_handler(): removed the memset() as
   pointless.

2. Also in osrf_stack_transport_handler(), in the loop traversing
   arr[]: changed the loop condition from "i != num_msgs" to
   "i < num_msgs", for hygienic reasons.

3. Eliminated osrf_stack_message_handler().  The first half of it moved
   into its caller.  The second half moved into the two callees
   _do_client() and _do_server().  This refactoring made it easier to
    eliminate a memory leak where _do_server() was failing to free the
   input osrfMessage.  I also eliminated a bug whereby we potentially
   tried to access a member of a freed osrfMessage.

4. osrf_stack_application_handler() now returns void instead of int,
   since we were ignoring the return value anyway.

git-svn-id: svn://svn.open-ils.org/OpenSRF/trunk@1569 9efc2488-bf62-4759-914b-345cdb29e865