Eliminate all usage of WIN32 and __WIN32__ macros: Some compilers (e.g. Clang/LLVM) don't define it, and _WIN32 is much more portable anyway. 
See: [http://nadeausoftware.com/articles/2012/01/c_c_tip_how_use_compiler_predefined_macros_detect_operating_system#WindowsCygwinnonPOSIXandMinGW]
Fix execute permission bit (should not be set) for *Decls.h files
typo
typo
[9bf7e67b37]: minor documentation blooper
[1230597] Update test comment.
[1230597] Update test comment.
[3597178]: Improve documentation of what's going on with encodings
merge trunk