Merge branch 'accept' into v4.0

Conflicts:
	Gruntfile.js
	src/sites/abload.js
	src/sites/bc.vc.js
	src/sites/bilder-space.js
	src/sites/blackcatpix.js
	src/sites/casimages.js
	src/sites/cubeupload.js
	src/sites/digitalfrenzy.js
	src/sites/else.js
	src/sites/filedump.js
	src/sites/fotoo.pl.js
	src/sites/fotosik.pl.js
	src/sites/funkyimg.js
	src/sites/hostingpics.js
	src/sites/ifotos.pl.js
	src/sites/image18.org.js
	src/sites/imagehousing.js
	src/sites/imageno.js
	src/sites/imagepix.js
	src/sites/imageshost.ru.js
	src/sites/imagetwist.js
	src/sites/imageupper.js
	src/sites/imagevenue.js
	src/sites/img1.imagilive.com.js
	src/sites/mihalism.js
	src/sites/picfox.js
	src/sites/porter.js
	src/sites/reffbux.js
	src/sites/richlink.js
	src/sites/vvcap.js
	src/sites/yep.it.js
	src/sites/zipurl.js
	src/util/dom.js
	src/util/metadata.js