more fixes concerning flow-router
more fixes concerning flow-router

the reactive recomputation seems to happen to late, which causes the transitioner to pick the wrong route
the transition status gets update now manually, once mometum triggers, and automatically once flow-router triggers

PhilippSpo/momentum-flow-router,KyleKing/momentum-flow-router,PhilippSpo/momentum-flow-router,KyleKing/momentum-flow-router