Passes through `ignore` option to asset-rewrite.
Passes through `ignore` option to asset-rewrite.

kevinlondon/broccoli-asset-rev,stefanpenner/broccoli-asset-rev,elucid/broccoli-asset-rev,rickharrison/broccoli-asset-rev,nadnoslen/broccoli-asset-rev,joliss/broccoli-asset-rev