Imported Upstream version 4.0.1
Imported Upstream version 4.0.2
Added debug patch for reset_msgid
Imported Upstream version 4.0.3
Merge tag 'upstream/4.0.3'

Upstream version 4.0.3
New upstream version
debian/patches: removed applied upstream patches
use upstream CC_EXTRA_OPTS and LD_EXTRA_OPTS environment variables to pass hardening flags