Update to upstream version '5.0'
with Debian dir 7e5c77376db2f2614e438f09a36f28dfe4b9d86c

Fix some issues reported by lintian

See merge request javacc!1

Fixes lintian: vcs-field-not-canonical
See https://lintian.debian.org/tags/vcs-field-not-canonical.html for more details.

Fixes lintian: vcs-obsolete-in-debian-infrastructure
See https://lintian.debian.org/tags/vcs-obsolete-in-debian-infrastructure.html for more details.

Fixes lintian: uses-debhelper-compat-file
See https://lintian.debian.org/tags/uses-debhelper-compat-file.html for more details.

Fixes lintian: package-uses-old-debhelper-compat-version
See https://lintian.debian.org/tags/package-uses-old-debhelper-compat-version.html for more details.

Fixes lintian: out-of-date-standards-version
See https://lintian.debian.org/tags/out-of-date-standards-version.html for more details.

Fixes lintian: homepage-field-uses-insecure-uri
See https://lintian.debian.org/tags/homepage-field-uses-insecure-uri.html for more details.

Fixes lintian: insecure-copyright-format-uri
See https://lintian.debian.org/tags/insecure-copyright-format-uri.html for more details.

Fixes lintian: file-contains-trailing-whitespace
See https://lintian.debian.org/tags/file-contains-trailing-whitespace.html for more details.

Fixed a regression causing the encountered/expected token list to be empty (https://java.net/jira/browse/JAVACC-244)