Fixed bug in argv.hpp when reading a named variable last.
Added 'equal' function and fixed a bug in vector self assignment.
Added 'histogram' functions.
Improved 'interpolate' to work on arbiratry dimension arrays.
Reverted previous change.
Implemented redshift distribution smoothing in 'template_fit'.
Added single value randomn functions.
Fixed bug in indexing bool arrays. Added indexing with 'view' arrays. Added vec_dim trait.
Added randomi().
Templatized qstack functions and added qstack_mean_boostrap() and qstack_median_boostrap().
Added unit tests for 'histogram' and 'equal'.
Added the possibility to choose the number of samples in qstack bootstraping.
Added specialization of subregion with initializer_list.