Patch from Scott McKellar:

Patch from Scott McKellar:

1. I moved almost everything from the header into the implementation
file, since it isn't referenced elsewhere.  All that's left is one
prototype and some nested #includes.

2. I moved the nested #includes inside the compilation guard.

3. Except for osrf_stack_transport_handler(), all functions are now
static.

4. I applied the const qualifier to the second parameter of
osrf_stack_transport_handler().

5. I plugged a memory leak in osrf_stack_transport_handler().  When
unable to open a session, we were returning without freeing the
input message.

git-svn-id: svn://svn.open-ils.org/OpenSRF/trunk@1209 9efc2488-bf62-4759-914b-345cdb29e865