Fixed 'Tagger::pagesByTag'
Added 'slugify' in function 'tag_links'
Added more special characters
Added 'Tagger::tagName' to retrieve the original tag name
Merge pull request #22 from Wicker25/patch-0

Fixed some issues
Merge pull request #23 from Wicker25/original-tag-name

Added 'Tagger::tagName' to retrieve the original tag name