verifying fuel level not only while moving but in general, to allow us to relatively surely detect server crashes that resulted in a rollback; updated state files a little bit (added new one explicitly for fuel), but it should upgrade old versions automatically
making sure fuel state is not lost after upgrading
improved errors a bit; always moving along the shortest axis first in lama.navigate now
fixed distance comparison (missing math.abs)
redid validation of state when not moving, should be pretty stable now; added lama.refuel which must be used instead of turtle.refuel;
fixed initialization order and deadlock on startup due to internal functions using external ones; added parameter to moveto and navigate that controls whether we move along the long or short axes first
added missing fuel level update in lama.refuel()
fixed fuel tracking
generating intermediate waypoints when navigating longest axis first to avoid changing course when reloading while traveling due to the longest axis stopping to be the longest axis
went back to waiting when encountering invulnerable entities even if we have infinite tries, to avoid going off-course when encountering a player and moving longest axis first
select() didn't do what i thought it did; updated readme