Fix: cache wasn't updated after a SW update

Also, a missing file has been added to the cache

Change-Id: Ifc7d6f87e0db575df5d619204cfec258023dfe3c
1 file changed
tree: 48ecf96e2c8870d27c0b9d6f2b9ea7438435aa07
  1. concerts/
  2. css/
  3. img/
  4. js/
  5. tools/
  6. index.html
  7. manifest.json
  8. robots.txt
  9. sw.js