Update position when scope changes

[philippfranke]

After discussion on #19, I tried to fix that issue.

[tedkulp]

👍

This works great with my limited testing on a Greenfield app. The only thing I could think is that people might want this to be optional in order not to break backwards compatibility.

[philippfranke]

@tedkulp, you're right about backwards compatibility. In a few days I'm going to write some tests and implement the ability to enable/disable this function.

/cc @swanandp

[narath]

👍
Good call on the default behaviour, just let it be the position, and remove / insert appropriately. Cool.

[swanandp]

I think this calls for a few more test cases, but looks good to me.