removed unused numpy version check for save_rec
Merge branch 'no_syn_ad' of https://github.com/inincs/pyNCS into headless
Merge branch 'no_syn_ad' of https://github.com/inincs/pyNCS into no_syn_ad
Merge branch 'no_syn_ad' of https://github.com/inincs/pyNCS into no_syn_ad
Removed np.choice because it is no backward compatible
optimized populate_by_id