load the minified worker when the minified build is requested for the main library
update jshint to get fix for ES6 property shorthand not working with a linebreak before closing parens
cover case in Scene.rebuild() where there are no tiles to build
don't upgrade browserify yet
demo: restore hash in parent frame
fix leaflet and worker tests
remove too-clever relative pathing, all config URLs are now just relative to root document
Merge branch 'master' into mode_refresh_queue