[CSRSRV]

[CSRSRV]
- Comment on the size of some members of the CSR_WAIT_BLOCK structure.
- Initialize the WaitBlock member of CSR_THREAD to a valid value when creating a wait block, and NULLify it when we release a wait block.
- ALWAYS USE offsets in CSR_CAPTURE_BUFFER structure, instead of real pointers !! It is needed when their base address change (eg. during a CSR wait, their base address, corresponding to the address of an CSR API message, change) (found when testing CSR waits with the console).

svn path=/branches/ros-csrss/; revision=57806