Added reference documentation for YAML
Fixed generation of icon for links to configuration options
Design: More spacing for some headers
Fixed links to meta information key descriptions
Added meta information key reference
Fixed problem with webgen tag processing
Added link to blocks meta information in webgen page format reference
Corrected documentation of path handler feed and sitemap
Fixed display of paths from /default.metainfo for path handler extensions
Added glossary page and automatic link defs for glossary items
Added navigation links for the documentation pages
Fixed title of API directory
Updated default.template

* Changed sidebar header text
* Now using first available content block
Fixed tag.coderay example so that no error is thrown when the config file contains tag-like strings
Added tag.menu.css_class information to tag.menu documentation
Added Open Sans font files
Redid website design using ZURB Foundation
Now correctly showing documentation directory, not index file, in main menu
Added documentation for new tag.menu css class options
Added correct link to webgen API documentation in reference main page