Pass tiny-lr options into client to set reload flags

The motivation behind this patch is to add the liveImg flag, which is needed when you are using images in canvas or webGL. By default, livereload with liveImg=true will only re-set the src of an image - not reload the whole page, which is not useful if you are creating images dynamically and using them in a different context. Though having flags for liveJs and liveCss seems like a good idea too.