New upstream version 0.8.4
Merge tag 'upstream/0.8.4'

Upstream version 0.8.4
Bump standards version, no changes necessary
Update VCS fields to make lintian happy
Include additional docs and example code
Bump soname and update symbols file
Re-enable build-time tests

Closes: #718409
Document changes for 0.8.4-1 release
Fix FTBFS on amrel and armhf (Closes: #743403)
Use dpkg-buildflags to build with hardened flags
Document changes for 0.8.4-2 release
Add support for hppa/PA-RISC architecture (Closes: #742979)