Improved performances of random functions.
Upgraded to new random functions and fixed source count.
Upgraded to new random functions.
Added sqr() and invsqr() function (faster than pow(x,2) and pow(x,-2)).
Optimized run_dim() and added variants.
Added vec::resize(...) function.
Added array_size() trait.
Added qstack_boostrap() and variants.
Added in_convex_hull().
Improved qstack_bootstrap functions to allow different data type for flux and weight.
Improved qstack2 to allow bootstraping, reading data cubes, saving data cubes and stacking at random positions.