title: Can gtags navigate back?
body: <p>I use vim with gtags plug in to read code through multiple files. Everything is okay except that I donnot know how to navigate back to the previous position before I run :CtagsCursor to jump to the token definition. I read through the GNU global online docs, but find nothing useful. But in the chapter "3.4 Elvis using GLOBAL", it says "CTRL-T return to the most recent tag context.", which is exactly what I wants. No idea why the function is not implemented for vim, or something is wrong with me?</p>
  
  <p>BR, Ruochen</p>