Add option to disable local proxy

[ErkoKnoll]

Looking at your latest commits it seems you have embedded a local web server to act as a proxy, probably because a lot of people have problems with CORS. However for some of us the previous version worked just fine and we really don't need that local proxy so please add an option to disable it.

[ghenry22]

just fork the repository, create a branch from the last commit before the local proxy code went in and you can then add the plugin from that branch with the code as it was at that point in time. I have done exactly this as the previous version was working well for me and there seem to be a few issues with the local proxy when put into background mode.

[ErkoKnoll]

This is exactly what I did, but looking into the future I prefer to have the latest version available but with an option to disable the local proxy.

[twinj]

Just reference the commit number in your config. Working with CORS is easy enough.