optimize distance by avoiding error-handling, and remove get-distance -- default to 0 for same-origin-destination
fix tests by avoiding name collission (were not being loaded)
change find to member on node-on-route-p
add declaim optimize everywhere
optimize vehicle-with-node-id using TC-recursion
update version + changelog
Merge branch 'profiling' into rearchitecture - fixes mck-/Routific-API#2