Fix for winmindef.h defining min/max macros

[sfinktah]

winmindef.h defines macros for min and max which cause several lines in documents.h to be expanded incorrectly whilst only presenting warnings that min and max lacked sufficient arguments.

See: http://stackoverflow.com/questions/22744262/cant-call-stdmax-because-minwindef-h-defines-max for more information.

[coveralls]

Coverage remained the same at 99.937% when pulling 51a31ce on sfinktah:sfinktah-minwindef-fix into 7a39172 on miloyip:master.

[chwarr]

There's another approach that works across compilers. Adding an extra set of parenthesis. Would you prefer that instead of pushing/popping macro definitions? I can code it up and submit a PR.

static_cast<double>(std::numeric_limits<uint64_t>::max())

becomes

static_cast<double>((std::numeric_limits<uint64_t>::max)())

If you want me to code this up, there are some uses of min/max in the tests as well. Shall I guard them as well, or just the header files?

[miloyip]

@chwarr Can you provide a PR for this? I think all source code is better. Thanks

[chwarr]

#1057 opened with the paren guard for min/max.