A bunch of small and medium changes

fix bug in FindTransitionState.  oldeigenvec was coppied too soon which mean
that overlap was always 1.  Not a major bug, but also not trivial.

minima_from_ts routine is now cleaner and documented.  also pushoff_params is
now part of the parameter tree

make can_invert passable for atomic systems mindist

imporove clarity of printout for lbfgs

make quenchRoutine passable in NEB