sysbench

* version 1.0.20
* build/CI/packaging: Add arm64 to Travis CI matrix (#358)
* build/CI/packaging: add Ubuntu Focal
* build/CI/packaging: remove Fedora Rawhide from CI matrix
* build/CI/packaging: fix regression tests to work with MySQL 8.0.19+
* build/CI/packaging: fix macOS builds in Travis
* build/CI/packaging: remove Ubuntu Disco (EOL)

* version 1.0.19
* build/CI/packaging: fix Ubuntu packaging for Bionic and later versions
* regression tests: compatibility fix for PostgreSQL 12
* build/CI/packaging: fix macOs builds in Travis
* build/CI/packaging: add Fedora 31.

• version 1.0.18
  • build/CI/packaging: add Ubuntu Eoan.
  • build/CI/packaging: remove Ubuntu Cosmic (EOL).
  • build/CI/packaging: add CentOS 8.
  • build/CI/packaging: add Ubuntu Disco.
  • build/CI/packaging: remove Ubuntu Trusty (EOL).
  • build/CI/packaging: remove Fedora 28 (EOL).
  • build/CI/packaging: add Fedora 30.
  • build/CI/packaging: cherry-pick fix for LuaJIT/LuaJIT#484 to fix...

* version 1.0.17
* build/CI/packaging: update RPM spec to support RHEL8-beta
(thanks to Alexey Bychko for the patch)
* regression tests: remove unnecessary error leading to
opt_rate.t instability.
* --rate mode: return a non-zero exit code on event queue
overflow.
* --rate mode: fix a bogus error about eventgen thread
termination

• version 1.0.16
  • build/CI/packaging: add Ubuntu Cosmic.
  • build/CI/packaging: add Fedora 29.
  • build/CI/packaging: remove Fedora 27 (EOL).
  • SQL API: fix GH-282 (Mysql's fetch_row() is broken)
  • --rate mode: fix latency stats skew on low rates
  • Lua: Add /usr/share/lua/5.1 to LUA_PATH and /usr/lib/lua/5.1 to LUA_CPATH.
  • build/CI/packaging: add -Wvla to default compiler flags....