Included manually a number of changes.

1) The defaut stabilization is now taken from branch 38 (https://git.physik.uni-wuerzburg.de/fassaad/General_QMCT_code/commit/2aa1bbbffe06e4931a3a1a58d6a529d473e8d8b7 )
The compiler flag STAB2 will revert to the older one. Note that the history of stabilization schemes are available with the compiler flags STAB1 and STAB2.
2)  I have implemented the improved timing from the branch improve timing (https://git.physik.uni-wuerzburg.de/fassaad/General_QMCT_code/commit/0dcfd7a10dc2c537efad7e87e17ea485f40b673f)
3)  I have fixed the "bug" in lattice which does not allocate the array imj if the size of the lattice is bigger than 1000.  That was admittedly pretty sloppy.