Fix #50 template not found on Windows OSes.
Fix #50 template not found on Windows OSes.

droythorne/folium,ocefpaf/folium,zhoujh30/folium,talespaiva/folium,python-visualization/folium,ocefpaf/folium,LACMTA/folium,talespaiva/folium,LACMTA/folium,talespaiva/folium,xujun10110/folium,zhoujh30/folium,zhoujh30/folium,QuLogic/folium,LACMTA/folium,BibMartin/folium,QuLogic/folium,themiurgo/folium,droythorne/folium,themiurgo/folium,koldunovn/folium,kod3r/folium,xujun10110/folium,BibMartin/folium,ozak/folium,themiurgo/folium,koldunovn/folium,shankari/folium,shankari/folium,BibMartin/folium,droythorne/folium,andrewgiessel/folium,python-visualization/folium,xujun10110/folium,koldunovn/folium,QuLogic/folium,andrewgiessel/folium,shankari/folium,talespaiva/folium,kod3r/folium,ozak/folium,ozak/folium,kod3r/folium,andrewgiessel/folium