DOC: update ipython_directive with changes from ipython to restart prompt number at 1 each page
DOC: update ipython_directive with changes from ipython to restart prompt number at 1 each page

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