Implement new set node location API

[selankon]

Once libremesh/lime-packages#1155 is fixed, implement the new API interface to locate a node.

1. Use the correct API call to insert the location into shared state
2. Refactor post submit location actions to invalidate only needed queries and provably also disable publishAll: https://github.com/libremesh/lime-app/pull/476/files#diff-af289d6ab055dec39028eee9dcfbf8303cd3d197a770f83c37d0f2ac443cd396R39-R50