Added _DatetimeScalar to replace dt.Datetime in np.datetime64
Added _DatetimeScalar to replace dt.Datetime in np.datetime64

seberg/numpy,rgommers/numpy,mhvk/numpy,pbrod/numpy,anntzer/numpy,anntzer/numpy,jakirkham/numpy,mhvk/numpy,endolith/numpy,rgommers/numpy,endolith/numpy,simongibbons/numpy,charris/numpy,jakirkham/numpy,mattip/numpy,simongibbons/numpy,mhvk/numpy,mattip/numpy,mhvk/numpy,pbrod/numpy,seberg/numpy,pdebuyl/numpy,numpy/numpy,pbrod/numpy,seberg/numpy,numpy/numpy,jakirkham/numpy,pdebuyl/numpy,rgommers/numpy,mattip/numpy,anntzer/numpy,pdebuyl/numpy,jakirkham/numpy,simongibbons/numpy,charris/numpy,seberg/numpy,simongibbons/numpy,pbrod/numpy,pbrod/numpy,charris/numpy,pdebuyl/numpy,charris/numpy,endolith/numpy,endolith/numpy,rgommers/numpy,simongibbons/numpy,anntzer/numpy,numpy/numpy,jakirkham/numpy,numpy/numpy,mattip/numpy,mhvk/numpy