the current version in the manifest.json file is '7.19rc4'; but inside the release tarball on gnu.org, it has '7.19'

the version number mis-match in manifest.json does not correspond to any published git commit - is the latest release on gnu.org from the current pagure master branch?

55469c3 Merge #36 Correctly decode using the original document charset and force re-encoding via UTF-8 BOM only when needed.

this MR is under that assumption, updating the manifest.json and adding git tag '7.19.0' on this commit