gulp-responsive shows deprecation warnings

[Quicksaver]

Documentation was down when gulp-responsive was implemented. Re-visit later.

(node:1131) DeprecationWarning: quality: use jpeg({ quality: ... }), webp({ quality: ... }) and/or tiff({ quality: ... }) instead (node:1131) DeprecationWarning: progressive: use jpeg({ progressive: ... }) and/or png({ progressive: ... }) instead (node:1131) DeprecationWarning: withoutChromaSubsampling: use jpeg({ chromaSubsampling: "4:4:4" }) instead (node:1131) DeprecationWarning: compressionLevel: use png({ compressionLevel: ... }) instead