Updated random seed, effects, presets, tests, readme

Fixed and updated random seed
Updated effects (seed Number.MAX_SAFE_INTEGER)
Updated packages.json and yarn.lock (pngjs 5.0.0)
Updated mocha version and travis config
Updated readme (removed unavailable david-dm.org badge)
Updated noise (removed console.log)
Updated copy and merge
Updated presets (rrrr)
Updated tests