- create.c: All instances of a pipe must be the same pipe mode as when first instance...

- create.c: All instances of a pipe must be the same pipe mode as when first instance was created.
            Clients start of in byte stream mode, regardless of the pipe's mode.
- finfo.c:  NPFS does not allow changing read mode to message for byte stream mode pipes.
- rw.c:     The format in which data is in the pipe's buffer is based on the pipe mode vice read mode.
            Implement reads in byte stream mode for pipes using message mode.
            Fixed a bug that could caused buffer data to be corrupted due to incorrect calc of WritePtr position.
- fsctrl.c: Return buffer from NpfsPeekPipe if caller requested.
            Use a mutex before reading the pipe's buffer.
            Return the correct length in Irp info.

svn path=/trunk/; revision=38790