Revert "Revert "ignore espresso files""
Revert "Revert "ignore espresso files""

This reverts commit 3806bc24046741b71938ff1708b75ed1073870fd.

eriksjolund/OpenSeadragonPaperjsOverlay,altert/OpenseadragonFabricjsOverlay,eriksjolund/OpenSeadragonPaperjsOverlay,TheGuardianWolf/OpenSeadragonPaperjsOverlay,altert/OpenseadragonFabricjsOverlay,TheGuardianWolf/OpenSeadragonPaperjsOverlay