Don't install conflicting std*.h and varargs.h files.
- Stage
- Pet portlint

PR:		ports/188883
Submitted by:	Bartek Rutkowski <ports@robakdesign.com>
- Remove LICENSE_FILE
- Add OPTIONS_DEFINE
- Make docs and examples unconditional
- Bump PORTREVISION
- Fix LICENSE
- Use auto plist
- Make use of UNIQUENAME