add start and end of 1 to locations given to the location nav if they aren't present
add start and end of 1 to locations given to the location nav if they aren't present

andrewyatz/public-plugins,Ensembl/public-plugins,muffato/public-plugins,Ensembl/public-plugins,muffato/public-plugins,andrewyatz/public-plugins,andrewyatz/public-plugins,andrewyatz/public-plugins,muffato/public-plugins,muffato/public-plugins,andrewyatz/public-plugins,Ensembl/public-plugins