BUG: mom._center_window should validate axis value against data dims
BUG: mom._center_window should validate axis value against data dims

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