Make fullReset clear app on session stop as well

lib/devices/android/android.js

@@ -318,6 +318,18 @@ Android.prototype.requestXmlCompression = function (cb) {
 
 Android.prototype.stop = function (cb) {
   this.shuttingDown = true;
+
+  if (this.opts.fullReset) {
+    logger.info("Removing app from device");
+    this.uninstallApp(function (err) {
+      if (err) {
+        // simply warn on error here, because we don't want to stop the shutdown
+        // process
+        logger.warn(err);
+      }
+    });
+  }
+
   if (this.adb) {
     this.adb.goToHome(function () {
       this.shutdown(cb);