fix(xterm.js): switch xterm.js to tty.js

because xterm.js have a bug

.angular-cli.json

@@ -34,7 +34,8 @@
         "../node_modules/jquery-sparkline/jquery.sparkline.js",
         "../node_modules/tether/dist/js/tether.min.js",
         "../node_modules/bootstrap/dist/js/bootstrap.min.js",
-        "../node_modules/xterm/dist/xterm.js",
+        "../node_modules/term.js/src/term.js",
+        "../node_modules/tty.js/static/tty.js",
         "../node_modules/layui-layer/dist/layer.js",
         "../node_modules/socket.io-client/dist/socket.io.js",
         "./assets/js/mstsc.js",

package.json

@@ -48,6 +48,7 @@
     "socket.io-client": "^2.0.4",
     "ssh-keygen": "^0.4.1",
     "tether": "^1.4.0",
+    "tty.js": "^0.2.15",
     "xterm": "^2.9.2",
     "zone.js": "^0.8.14"
   },