Better message in exception when conversion from period to timestamp fails
Better message in exception when conversion from period to timestamp fails

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