0.4.7

• replaced non working IP spoofing with request over proxy, only the access token is requested over the proxy
  • only http/https proxies are supported, because I couldn't get SOCKS4/SOCKS5 to run
  • a proxy is automatically fetched with gimmeproxy.com or pubproxy.com
    • additional proxy request sites can be added in the addon settings
  • it is also possible to use a custom proxy
• added an option to request a new access token on the next video request