Can't show Chinese VM name correctly

[hlwanghl]

We are using noVNC in our project Kimchi. Refer to the original issue: https://github.com/kimchi-project/kimchi/issues/88.

Reproduce:

1. Create a VM with name "虚拟机-Ubuntu-13_04-01".
2. Start it.
3. Connect it via VNC.

Read the text in center of the top line.

Executed: Connected (unencrypted) to: QEMU (虚拟机-Ubuntu-13_04-01)

Expected: Connected (unencrypted) to: QEMU (虚拟机-Ubuntu-13_04-01)

[DirectXMan12]

see #365