just small issue with scal
Merge branch 'brecht' of github.com:naokin/btas into brecht

* 'brecht' of github.com:naokin/btas:
  Fixed small bug about PRINT_WARNINGS
  Fixed bugs in QSDxxx routines, when using custom quantum number class without typedefing to Quantum
  Fixed bug for default construction of TArray

update with origin
fixed small bug in MPSblas dot and inprod routines