added location field to markdown generator page. fixes #36. @magnifiedjoy: you can now use this to generate latitude/longitude info which will be needed for any post that will be displayed on the map. The `latitude:` and `longitude:` items will need to be add to the header (frontmatter) for existing posts that you want mapped.
Merge branch 'gh-pages' of https://github.com/magnified-joy/magnifiedjoy.com into gh-pages