Fix Validate(Pixel|Vertex)Shader() prototypes so they match the spec file.
Fix the stub message so it is more standard and use consistent
parameter names.

- now recognize winedbg foo.mdmp on command line
- fleshed out tgt_minidump to reload information from minidump

- added ability to specify process_io at process creation/attachment
  time
- created a process_io structure for gdbproxy

- split dbg_main_loop in two parts (one for finishing the debuggee
  attachment, the second one really for handling the main loop)
- removed now longer needed dbg_main_loop

- Don't call hlink_navigate if HLNF_OPENINNEWWINDOW is set.
- Remove unneeded call to GetBindInfo.

- do not add extra space; modify the tests to confirm this;
- right flush to the menu tab stop, not to the menu border;
- small fixes to the menu tab stop calculation.

This fixes texture colours in many D3D games (verified with Age Of Mythology).

(as defined by the PSDK) so the ServerAllocSize part is easier to
calculate.

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and Red Hat.  Document the use of libxml2 as a weak prerequisite.