Update the HTML with the new img filenames in meta tags.
Update the HTML with the new img filenames in meta tags.

Sometimes there are links to images in the meta tags, such as facebook
open graph meta tag `<meta property="og:image" content="http://facebook.combanner.png"/>`.

alippai/grunt-usemin,liorsion/grunt-usemin,rudasn/grunt-usemin,alippai/grunt-usemin,happynale/grunt-usemin,yeoman/grunt-usemin,trumbitta/grunt-usemin,blighli/grunt-usemin,audibene-em/grunt-usemin,happynale/grunt-usemin,audibene-em/grunt-usemin,dlmiles/grunt-usemin,schmod/grunt-usemin,yeoman/grunt-usemin,liorsion/grunt-usemin,andreskir/grunt-usemin,TrevorS/grunt-usemin,dlmiles/grunt-usemin,nqdy666/grunt-usemin,trumbitta/grunt-usemin,blighli/grunt-usemin,rudasn/grunt-usemin,TrevorS/grunt-usemin,andreskir/grunt-usemin,stephanebachelier/grunt-usemin,leornado/grunt-usemin-wnd,nqdy666/grunt-usemin,stephanebachelier/grunt-usemin,leornado/grunt-usemin-wnd