Bump min verison to 4.0.
Bump min verison to 4.0.

thunsaker/cloudpebble,pebble/cloudpebble,pebble/cloudpebble,pebble/cloudpebble,pebble/cloudpebble,thunsaker/cloudpebble,thunsaker/cloudpebble,pebble/cloudpebble,thunsaker/cloudpebble