Use woods-parsedown module for markdown parsing and stop using yaml, because its formatting is too strict for clients to work with.
Read files as utf8.
Add optional callback to woods.initialize.
Update package.json
More work on thumbnails.
Change the way we handle parsers.

No longer base the name off the filename, opting instead to have parser files export an object literal of which the key/values define parsers.
Add woods binary.
Update woods-parsedown dependency to version 0.0.2.
Update the example site.
Update TemplateParam
Create thumbnails dir when missing.