novnc/docs/release.txt

- Update and commit docs/VERSION
- Create version tag and tarball from tag
    WVER=0.3
    git tag v${WVER}
    git push origin master
    git push origin v${WVER}
    git archive --format=tar --prefix=novnc-${WVER}/ v${WVER} > novnc-${WVER}.tar
    gzip novnc-${WVER}.tar
- Upload tarball to repo