Plugin Update

This add a plugin folder where it's easier to add plugins.

what is does now:
-list plugins
-open settings
-install plugin in browser
-delete plugins in browser

 I have plans to add:
-download and install
-Plugin api
-and a lot more

![2013-12-17_0047](https://f.cloud.github.com/assets/1642635/1760312/d61540ea-66ac-11e3-9d07-30e57db2555b.png)