Merge branch 'release/1.19'

* release/1.19:
  Update changelog
  Bump version to v1.19
  Add getter for cache_path
  Added more twig extension functions.
  Add Katsuma Ito to contributers
  Make asset urls scheme-relative, to avoid http/https issues.
  Prevent glob() from including folders
  Remove commented-out line
  Remove duplicate from contributers