Stub out PDFWrangler AssetStore for testing
Stub out PDFWrangler AssetStore for testing

moodpo/documentcloud,monofox/documentcloud,moodpo/documentcloud,ivarvong/documentcloud,roberttdev/dactyl4,monofox/documentcloud,moodpo/documentcloud,ivarvong/documentcloud,ivarvong/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,dannguyen/documentcloud,roberttdev/dactyl4,gunjanmodi/documentcloud,roberttdev/dactyl4,ivarvong/documentcloud,gunjanmodi/documentcloud,monofox/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,dannguyen/documentcloud,dannguyen/documentcloud,documentcloud/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,documentcloud/documentcloud,gunjanmodi/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,gunjanmodi/documentcloud,documentcloud/documentcloud,roberttdev/dactyl4,documentcloud/documentcloud,dannguyen/documentcloud,moodpo/documentcloud,monofox/documentcloud