Added toVideo for conversion ... to video; added width, height, pixel* getters; use pixel getters where possible; changed 'binary' property, now just returns a buffer (devs can check the 'width' property now); corrected issue where GIF and PNG output was one column and one row short.
Updated docs wrt new getters, new toVideo method, API change re: binary; updated the example code accordingly.
Updated re: new .binary property, added demo of .toVideo method.