BUG: clean up Series wrapper that is not needed, per #819 comments
BUG: clean up Series wrapper that is not needed, per #819 comments

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