Add humans.txt.json
helper-findURL
helper-prettyDate
Use prettyDate helper in layout-blog.hbs
Update YFM in posts collection

- Remove shortName data: depreciated, using title data
- Remove pubdate data: depreciated, using helper-prettyDate
- Remove published: true if defined
- Add date data
- Remove posted data
Move posts collection to posts directory in root
Delete portfolio content
Move pages directory to root
Delete old blog feeds
Change text selection styles
Switch to flexbox layout for author bio
Update author data
Fix small element size, use min-width for hr
Clean up work page
Update print stylesheet
Fix error with nav-toggle color on work page
Consolidate category styles
Remove border from page-header
Major updates to Grunt

- Use options object for options and directories instead of site.yml.
- Update Assemble tasks to reflect various changes to templates and
directory structure.
- Add URL string to package.json
Initial commit of Downbeat 2014 compilation page