add more ansii image methods for animation. fix test.

README.md

@@ -1493,6 +1493,9 @@ installed.
 - __setImage(file)__ - Set the image in the box to a new path. File can be a
   path, url, or buffer.
 - __clearImage()__ - Clear the image.
+- __play()__ - Play animation if it has been paused or stopped.
+- __pause()__ - Pause animation.
+- __stop()__ - Stop animation.
 
 
 #### OverlayImage (from Box)

lib/widgets/ansiimage.js

@@ -118,7 +118,20 @@ ANSIImage.prototype.setImage = function(file) {
   }
 };
 
+ANSIImage.prototype.play = function() {
+  return this.img.play();
+};
+ANSIImage.prototype.pause = function() {
+  return this.img.pause();
+};
+ANSIImage.prototype.stop = function() {
+  return this.img.stop();
+};
+
 ANSIImage.prototype.clearImage = function() {
+  if (this.img && this.img.frames) {
+    this.stop();
+  }
   this.setContent('');
   this.img = null;
   this.cellmap = null;

test/widget-png.js

@@ -61,7 +61,7 @@ var url = 'https://people.mozilla.org/~dolske/apng/spinfox.png';
 if (!file) {
   try {
     if (!fs.existsSync(spinfox)) {
-      var buf = blessed.png.curl(url);
+      var buf = blessed.ansiimage.curl(url);
       fs.writeFileSync(spinfox, buf);
     }
     file = spinfox;