Firefox: Introduced a Varnam Server setting that users can use if they are running their own Varnam servers.
No more need to monkey-patch addon distributables.
Chrome: Allow users to configure the Varnam server they want to use.
Merge pull request #40 from sdqali/configurable_server

Varnam Server setting to allow users to configure the Varnam server they want to use.
Fixing FF addon not working on about:home