[NPFS]

[NPFS]
- Fix return status if no listening server found in NpfsCreate
- Do not use obsolete function MmGetSystemAddressForMdl
- Fix a few MSVC/GCC 4.7 warnings
- Correctly handle device/root FCB allocation failure
- Fix type of NPFS_CCB::RefCount

svn path=/trunk/; revision=57419