Compiler warnings; minor thread.h patch

[Albert Strasheim]

Hello,

Attached is a patch to remove the extra qualification of getThreadID() 
in thread.h on line 1352.

This warning shows up when compiling Common C++ with the -Wall, -ansi, 
and -pedantic flags. I think this should be made the default for the 
project?

Another interesting issue that shows up is the extensive use of long 
long constants in sha.cpp, which is apparently forbidden by ANSI C++.

Cheers,

Albert

threadqual.diff
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