Added pymbar_version.py as a symlink to docs directory to facilitate readthedocs.
Added pymbar_version.py as a symlink to docs directory to facilitate readthedocs.

kyleabeauchamp/pymbar,jchodera/pymbar,mrshirts/pymbar,choderalab/pymbar,jchodera/pymbar,jchodera/pymbar,Lnaden/pymbar,wesbarnett/pymbar,kyleabeauchamp/pymbar,mrshirts/pymbar,wesbarnett/pymbar,kyleabeauchamp/pymbar,jchodera/pymbar,mrshirts/pymbar,wesbarnett/pymbar,Lnaden/pymbar,mrshirts/pymbar,kyleabeauchamp/pymbar,Lnaden/pymbar,choderalab/pymbar,choderalab/pymbar,wesbarnett/pymbar