Update to the connection manager:

Update to the connection manager:
- Fixes reference counting issues in user-mode so that CEPs get cleaned
up when IOCTL callbacks unwind.
- Integrated IRP handling from CEP proxy into CEP manager to allow for
proper cleanup when a process exits.
- Eliminated return value from CEP event callback as it serves no purpose.
- Fixed collision in CEP state enum values.
- Fixed providing correct CA GUID when sending REJ due to timeout.
- Fixed delay calculation in MRA processing.
- Fixed freeing MADs when handling REJ.
- Fixed CEP cleanup from send completion.
- Use full CID when performing CEP lookup for incoming MADs.
- Properly trap overflow in calculating MAD timeouts (pkt_life > 39).
- Include CA GUID in REJ issued due to user aborting the connection.

git-svn-id: svn://openib.tc.cornell.edu/gen1@29 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86