BUG: Output the datetime64 dtype to the pickle format from 1.6
BUG: Output the datetime64 dtype to the pickle format from 1.6

drasmuss/numpy,gmcastil/numpy,joferkington/numpy,astrofrog/numpy,ahaldane/numpy,anntzer/numpy,ewmoore/numpy,ekalosak/numpy,ewmoore/numpy,sinhrks/numpy,numpy/numpy,embray/numpy,ogrisel/numpy,argriffing/numpy,yiakwy/numpy,behzadnouri/numpy,stuarteberg/numpy,pizzathief/numpy,trankmichael/numpy,mwiebe/numpy,jakirkham/numpy,skymanaditya1/numpy,Eric89GXL/numpy,gfyoung/numpy,AustereCuriosity/numpy,skwbc/numpy,WarrenWeckesser/numpy,pbrod/numpy,dimasad/numpy,Linkid/numpy,tynn/numpy,kirillzhuravlev/numpy,ChristopherHogan/numpy,Linkid/numpy,anntzer/numpy,dato-code/numpy,abalkin/numpy,hainm/numpy,bringingheavendown/numpy,mathdd/numpy,moreati/numpy,sinhrks/numpy,felipebetancur/numpy,Anwesh43/numpy,Linkid/numpy,charris/numpy,yiakwy/numpy,jankoslavic/numpy,KaelChen/numpy,gfyoung/numpy,pbrod/numpy,empeeu/numpy,ahaldane/numpy,ajdawson/numpy,simongibbons/numpy,endolith/numpy,ogrisel/numpy,stuarteberg/numpy,trankmichael/numpy,dch312/numpy,jankoslavic/numpy,endolith/numpy,pdebuyl/numpy,mattip/numpy,GaZ3ll3/numpy,gfyoung/numpy,immerrr/numpy,Dapid/numpy,BMJHayward/numpy,pizzathief/numpy,naritta/numpy,GrimDerp/numpy,grlee77/numpy,skwbc/numpy,nguyentu1602/numpy,Eric89GXL/numpy,utke1/numpy,endolith/numpy,jakirkham/numpy,rajathkumarmp/numpy,rhythmsosad/numpy,Dapid/numpy,abalkin/numpy,bmorris3/numpy,madphysicist/numpy,hainm/numpy,ajdawson/numpy,dimasad/numpy,SiccarPoint/numpy,nbeaver/numpy,GaZ3ll3/numpy,Yusa95/numpy,abalkin/numpy,grlee77/numpy,jakirkham/numpy,nguyentu1602/numpy,dch312/numpy,stuarteberg/numpy,nguyentu1602/numpy,Yusa95/numpy,embray/numpy,rherault-insa/numpy,dch312/numpy,MSeifert04/numpy,anntzer/numpy,solarjoe/numpy,rmcgibbo/numpy,joferkington/numpy,pbrod/numpy,ViralLeadership/numpy,pdebuyl/numpy,pizzathief/numpy,immerrr/numpy,AustereCuriosity/numpy,pdebuyl/numpy,jankoslavic/numpy,groutr/numpy,mhvk/numpy,rherault-insa/numpy,mingwpy/numpy,jakirkham/numpy,joferkington/numpy,tynn/numpy,yiakwy/numpy,kiwifb/numpy,tacaswell/numpy,sinhrks/numpy,mingwpy/numpy,kirillzhuravlev/numpy,MichaelAquilina/numpy,rudimeier/numpy,mingwpy/numpy,CMartelLML/numpy,Yusa95/numpy,dwf/numpy,joferkington/numpy,bertrand-l/numpy,mhvk/numpy,dch312/numpy,kiwifb/numpy,jorisvandenbossche/numpy,bmorris3/numpy,yiakwy/numpy,tynn/numpy,jschueller/numpy,seberg/numpy,jonathanunderwood/numpy,musically-ut/numpy,bertrand-l/numpy,dwillmer/numpy,jorisvandenbossche/numpy,anntzer/numpy,bertrand-l/numpy,pelson/numpy,CMartelLML/numpy,mathdd/numpy,astrofrog/numpy,maniteja123/numpy,KaelChen/numpy,CMartelLML/numpy,mattip/numpy,bmorris3/numpy,KaelChen/numpy,naritta/numpy,rgommers/numpy,WillieMaddox/numpy,rmcgibbo/numpy,tacaswell/numpy,charris/numpy,mortada/numpy,rudimeier/numpy,behzadnouri/numpy,ESSS/numpy,sigma-random/numpy,Srisai85/numpy,MSeifert04/numpy,njase/numpy,dwillmer/numpy,SunghanKim/numpy,ViralLeadership/numpy,dimasad/numpy,mortada/numpy,seberg/numpy,SiccarPoint/numpy,chiffa/numpy,hainm/numpy,mwiebe/numpy,solarjoe/numpy,NextThought/pypy-numpy,njase/numpy,musically-ut/numpy,tdsmith/numpy,githubmlai/numpy,ewmoore/numpy,mattip/numpy,Srisai85/numpy,andsor/numpy,kirillzhuravlev/numpy,pelson/numpy,ChanderG/numpy,pbrod/numpy,KaelChen/numpy,SunghanKim/numpy,brandon-rhodes/numpy,sigma-random/numpy,NextThought/pypy-numpy,naritta/numpy,immerrr/numpy,cowlicks/numpy,tdsmith/numpy,Srisai85/numpy,has2k1/numpy,ogrisel/numpy,grlee77/numpy,shoyer/numpy,pelson/numpy,larsmans/numpy,larsmans/numpy,moreati/numpy,tdsmith/numpy,cowlicks/numpy,jakirkham/numpy,dwf/numpy,brandon-rhodes/numpy,Anwesh43/numpy,jonathanunderwood/numpy,GaZ3ll3/numpy,utke1/numpy,maniteja123/numpy,Eric89GXL/numpy,charris/numpy,gmcastil/numpy,WarrenWeckesser/numpy,mingwpy/numpy,simongibbons/numpy,bmorris3/numpy,chiffa/numpy,rmcgibbo/numpy,ahaldane/numpy,Eric89GXL/numpy,grlee77/numpy,BMJHayward/numpy,mwiebe/numpy,hainm/numpy,Anwesh43/numpy,GrimDerp/numpy,larsmans/numpy,cowlicks/numpy,ssanderson/numpy,dwillmer/numpy,dwillmer/numpy,utke1/numpy,nguyentu1602/numpy,skymanaditya1/numpy,Linkid/numpy,shoyer/numpy,MaPePeR/numpy,groutr/numpy,charris/numpy,nbeaver/numpy,chiffa/numpy,jschueller/numpy,mindw/numpy,rgommers/numpy,pelson/numpy,rmcgibbo/numpy,madphysicist/numpy,sinhrks/numpy,astrofrog/numpy,numpy/numpy,cjermain/numpy,bringingheavendown/numpy,SunghanKim/numpy,madphysicist/numpy,ContinuumIO/numpy,andsor/numpy,musically-ut/numpy,sigma-random/numpy,embray/numpy,ddasilva/numpy,BMJHayward/numpy,dwf/numpy,tacaswell/numpy,dato-code/numpy,MichaelAquilina/numpy,SunghanKim/numpy,pdebuyl/numpy,pizzathief/numpy,skymanaditya1/numpy,jschueller/numpy,ssanderson/numpy,mindw/numpy,trankmichael/numpy,jorisvandenbossche/numpy,dimasad/numpy,ChristopherHogan/numpy,ESSS/numpy,rherault-insa/numpy,Dapid/numpy,mortada/numpy,embray/numpy,brandon-rhodes/numpy,rhythmsosad/numpy,has2k1/numpy,MichaelAquilina/numpy,ahaldane/numpy,SiccarPoint/numpy,ESSS/numpy,ChanderG/numpy,moreati/numpy,bringingheavendown/numpy,WarrenWeckesser/numpy,ekalosak/numpy,simongibbons/numpy,chatcannon/numpy,jonathanunderwood/numpy,andsor/numpy,MaPePeR/numpy,SiccarPoint/numpy,MSeifert04/numpy,leifdenby/numpy,b-carter/numpy,tdsmith/numpy,Srisai85/numpy,shoyer/numpy,mhvk/numpy,kirillzhuravlev/numpy,skymanaditya1/numpy,ekalosak/numpy,NextThought/pypy-numpy,ChristopherHogan/numpy,ajdawson/numpy,cjermain/numpy,seberg/numpy,ddasilva/numpy,endolith/numpy,behzadnouri/numpy,simongibbons/numpy,madphysicist/numpy,naritta/numpy,mortada/numpy,embray/numpy,jorisvandenbossche/numpy,MichaelAquilina/numpy,ChanderG/numpy,sonnyhu/numpy,jorisvandenbossche/numpy,rudimeier/numpy,WillieMaddox/numpy,NextThought/pypy-numpy,AustereCuriosity/numpy,leifdenby/numpy,astrofrog/numpy,empeeu/numpy,githubmlai/numpy,ViralLeadership/numpy,githubmlai/numpy,empeeu/numpy,has2k1/numpy,cjermain/numpy,felipebetancur/numpy,gmcastil/numpy,ewmoore/numpy,dwf/numpy,ContinuumIO/numpy,sigma-random/numpy,felipebetancur/numpy,githubmlai/numpy,ogrisel/numpy,rajathkumarmp/numpy,shoyer/numpy,andsor/numpy,rgommers/numpy,astrofrog/numpy,dwf/numpy,stuarteberg/numpy,ekalosak/numpy,chatcannon/numpy,kiwifb/numpy,MaPePeR/numpy,dato-code/numpy,BabeNovelty/numpy,mathdd/numpy,sonnyhu/numpy,seberg/numpy,skwbc/numpy,BabeNovelty/numpy,GaZ3ll3/numpy,rudimeier/numpy,rajathkumarmp/numpy,MSeifert04/numpy,pizzathief/numpy,cowlicks/numpy,leifdenby/numpy,numpy/numpy,njase/numpy,mathdd/numpy,mindw/numpy,jschueller/numpy,GrimDerp/numpy,WillieMaddox/numpy,pyparallel/numpy,immerrr/numpy,sonnyhu/numpy,ahaldane/numpy,ContinuumIO/numpy,larsmans/numpy,BMJHayward/numpy,groutr/numpy,shoyer/numpy,rajathkumarmp/numpy,drasmuss/numpy,pbrod/numpy,ChristopherHogan/numpy,numpy/numpy,musically-ut/numpy,ajdawson/numpy,dato-code/numpy,ddasilva/numpy,WarrenWeckesser/numpy,argriffing/numpy,rhythmsosad/numpy,ewmoore/numpy,argriffing/numpy,sonnyhu/numpy,simongibbons/numpy,GrimDerp/numpy,mindw/numpy,b-carter/numpy,ogrisel/numpy,jankoslavic/numpy,rgommers/numpy,brandon-rhodes/numpy,mhvk/numpy,WarrenWeckesser/numpy,pyparallel/numpy,nbeaver/numpy,drasmuss/numpy,felipebetancur/numpy,maniteja123/numpy,trankmichael/numpy,chatcannon/numpy,MaPePeR/numpy,rhythmsosad/numpy,has2k1/numpy,BabeNovelty/numpy,ChanderG/numpy,cjermain/numpy,b-carter/numpy,empeeu/numpy,mattip/numpy,pyparallel/numpy,mhvk/numpy,pelson/numpy,ssanderson/numpy,grlee77/numpy,CMartelLML/numpy,solarjoe/numpy,madphysicist/numpy,BabeNovelty/numpy,Yusa95/numpy,MSeifert04/numpy,Anwesh43/numpy