Changes:
- New property max_line_length
- COMMIT_EDITMSG file added when writing commit messages
- Markdown files can have trimmed trailing whitespace also to simplify
settings.
- https link used to EditorConfig page.
- Added also *.y, *.cpp, and *.inc files
- The tab_width moved to a new all files section
Added support for .awk, .w32, .bat, .mk, .frag, .m4, .sh, .php, .phpt,
and Markdown files based on the current most used coding style in the
php-src repository.