DOC: move some deprecations to correct location in 0.20.0
DOC: move some deprecations to correct location in 0.20.0

louispotok/pandas,Winand/pandas,gfyoung/pandas,winklerand/pandas,winklerand/pandas,jreback/pandas,zfrenchee/pandas,jreback/pandas,Winand/pandas,winklerand/pandas,linebp/pandas,DGrady/pandas,MJuddBooth/pandas,linebp/pandas,jreback/pandas,jmmease/pandas,dsm054/pandas,gfyoung/pandas,amolkahat/pandas,MJuddBooth/pandas,rs2/pandas,dsm054/pandas,cbertinato/pandas,datapythonista/pandas,Winand/pandas,DGrady/pandas,kdebrab/pandas,pratapvardhan/pandas,zfrenchee/pandas,amolkahat/pandas,louispotok/pandas,jorisvandenbossche/pandas,winklerand/pandas,TomAugspurger/pandas,jmmease/pandas,kdebrab/pandas,kdebrab/pandas,cython-testbed/pandas,DGrady/pandas,nmartensen/pandas,Winand/pandas,amolkahat/pandas,jorisvandenbossche/pandas,GuessWhoSamFoo/pandas,jreback/pandas,TomAugspurger/pandas,zfrenchee/pandas,rs2/pandas,nmartensen/pandas,GuessWhoSamFoo/pandas,pratapvardhan/pandas,louispotok/pandas,nmartensen/pandas,winklerand/pandas,pandas-dev/pandas,nmartensen/pandas,pandas-dev/pandas,pratapvardhan/pandas,dsm054/pandas,GuessWhoSamFoo/pandas,toobaz/pandas,linebp/pandas,datapythonista/pandas,DGrady/pandas,cbertinato/pandas,linebp/pandas,TomAugspurger/pandas,zfrenchee/pandas,DGrady/pandas,pratapvardhan/pandas,MJuddBooth/pandas,jreback/pandas,jorisvandenbossche/pandas,MJuddBooth/pandas,linebp/pandas,gfyoung/pandas,toobaz/pandas,datapythonista/pandas,jmmease/pandas,pandas-dev/pandas,harisbal/pandas,harisbal/pandas,kdebrab/pandas,jorisvandenbossche/pandas,toobaz/pandas,winklerand/pandas,amolkahat/pandas,harisbal/pandas,amolkahat/pandas,DGrady/pandas,nmartensen/pandas,gfyoung/pandas,nmartensen/pandas,rs2/pandas,cbertinato/pandas,zfrenchee/pandas,harisbal/pandas,rs2/pandas,Winand/pandas,dsm054/pandas,linebp/pandas,cbertinato/pandas,jmmease/pandas,toobaz/pandas,jmmease/pandas,gfyoung/pandas,dsm054/pandas,cbertinato/pandas,Winand/pandas,cython-testbed/pandas,datapythonista/pandas,louispotok/pandas,louispotok/pandas,toobaz/pandas,TomAugspurger/pandas,cython-testbed/pandas,kdebrab/pandas,GuessWhoSamFoo/pandas,cython-testbed/pandas,pratapvardhan/pandas,MJuddBooth/pandas,cython-testbed/pandas,harisbal/pandas,pandas-dev/pandas,jmmease/pandas,GuessWhoSamFoo/pandas