Make tab navigation not use hrefs but rather $location
Make tab navigation not use hrefs but rather $location

Fixes https://github.com/openspending/openspending/issues/860

kravets-levko/os-packager,openspending/os-packager,openspending/fiscal-data-packager,kravets-levko/os-packager,openspending/fiscal-data-packager,openspending/os-packager,kravets-levko/os-packager