am 5a6e47bf: am b7530442: am a18b429f: am fe340fac: am e624b3fa: update the init_google_navtree2 method to handle new format for sample nav tree data. and update highlighting logic to handle hashtags

* commit '5a6e47bffb8d0bfec2f9adcfd11cac5545db596a':
  update the init_google_navtree2 method to handle new format for sample nav tree data. and update highlighting logic to handle hashtags