migration of TrackDetectorAssociator
define dead regions
return back lazy initialisation at the first step to avoid crash
Merge pull request #3447 from dr4kan/migration_TT_AT_ver3

Consumes -- Migration of TrackDetectorAssociator
Merge pull request #3526 from civanch/g4_user_actions

Sim -- Define dead regions
inline, move
prepare to avoid copy of matrix
cleanup constructors
clean Propagator interface
fix propagator overloading
fix constructor w/o weight
no regression
fix constructors to avoid conversion from double ot side
clean Propagator interface
new allocator and proxy using c+11
test new proxy
use shared_ptr
reduce memory churn, inline smatrix
inline alos is RungeKutta
do not churn in clone