_unitrep -> _unit_representation for astropy 1.1
_unitrep -> _unit_representation for astropy 1.1

naojsoft/ginga,rajul/ginga,pllim/ginga,ejeschke/ginga,Cadair/ginga,Cadair/ginga,stscieisenhamer/ginga,rajul/ginga,ejeschke/ginga,rupak0577/ginga,rajul/ginga,pllim/ginga,stscieisenhamer/ginga,rupak0577/ginga,rupak0577/ginga,Cadair/ginga,pllim/ginga,naojsoft/ginga,stscieisenhamer/ginga,naojsoft/ginga,ejeschke/ginga