Mkdocs-include-markdown-plugin

- Fixed encoding error in Windows including asian characters (75, reported by yaroslav-khomyak in 74).

Enhancements:

- Allow to pass relative and absolute globs for filenames including multiple files at once.

New features:

- New argument `exclude` for both directives to ignore certain files from being included. Also accepts relative and absolute globs.

- Improve cumulative heading offset behaviour (thanks for report mirk8s).

- Don't increase '' characters of comments in indented codeblocks using heading-offset.
- Added Spanish translation for documentation.

- Make heading-offset cumulative over nested inclusions.

Include all from different parts of the same page using the same `start` and `end` arguments.