ENH: Add support for converting DataFrames to R data.frames and matrices, close #350
ENH: Add support for converting DataFrames to R data.frames and
matrices, close #350

Conflicts:

	pandas/rpy/common.py

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