split processing of main bower files due to non-js files (assets) when adding leaflet
center leaflet to user's position and show some markers
deactivate autoDiscovery of leaflet map due to bug

not allowing location services causes no map to be drawn - not happening with current master version of leaflet directive.
add README in asciidoctor format
add user icon for github user details page

using ng-source prevents requests to image sources as long as there is no value set.