disable link_to_unless_current on touch move
disabled touch start for current links
updated workless
Bumped back link on show to top
removed worker from Procfile
Added image preview to `Spot` form

via `data-behavior~=image_preview`
Merge branch 'master' of https://github.com/seanpdoyle/chief

Conflicts:
	app/assets/javascripts/behavior.js.coffee