Release 1.4

What Changed

• Added FallbackToDisk option

Explanation

• When a static resource cannot be found FallbackToDisk when set
  to true will allow falling back to look for the resource on disk.
  This is particularly useful when you have mixes assets of both static
  and on disk resources i.e. js, css etc are static but you have a dir
  for user avatar images which is on disk and needs to be read and written
  to.