[WSD] Added missing connection tracking calls, fixed IP address map usage

[WSD] Added missing connection tracking calls, fixed IP address map usage
to prevent underflow/overflow during key comparisson which could result in
items being unreachable when tree is subsequently rotated, and minor code
cleanup in PnP and SA query code

Signed-off-by: Fab Tillier (ftillier@silverstorm.com)
git-svn-id: svn://openib.tc.cornell.edu/gen1@84 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86