Event handlers redraw all mount points. Fix #1146

[pygy]

This fixes the fiddle, but #1149 still gives an error, probably due to the fact that the second mount occurs at redraw time and redraws are batched.

I'll add a proper test later (unless someone beats me to it).

(#1146)

[pygy]

That's odd, the tests pass locally.

Edit: Likely a fluke due to timer resolution. Maybe using FRAMEBUDGET * 2 in the throttle tests would make them more reliable?

[pygy]

I removed the build artefact from the branch the patch is based on.

Note that, when running npm run build, I ended up with this line

looking like this:

        }, function(path, params) {
            router.setPath(defaultRoute, null, {replace: true})
        })

I had to fix it manually.

[barneycarroll]

This works in practice (the original problem case jsbin visibly just works), but not in theory — I couldn't get any lifecycle tests to pass this. I guess I'll have to invoke the autoredraw API…