doc/platform: Update to reflect current MSVC build situation

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  doc/platform: Update to reflect current MSVC build situation

Conflicts:
	doc/platform.texi

See: ec0b0c2b5875e4cb58ea19f82db6574774256e9d
Merged-by: Michael Niedermayer <michaelni@gmx.at>
configure: add #include "version.h" to config.h

Avoid clash with version.h of the libraries.

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>