Add watermarks on templates in index, show and edit views

Closes #194 

@val99erie or @bmaddy can you take a look at this and see if the change to app/views/records/edit.html.erb to add the necessary css class markup make sense and are reasonable.  I'm not sure if this merits any kind of spec; and I'm doubly uncertain how you'd test without some pretty fragile assumptions about the blacklight class names.