TS-2484 Add API support for the two missing overridable APIs
Added TS-2484 to CHANGES>
Add a SSL certificate matching integration test

Various fixes the the tsqa harness to improve output legibility.
Crank up the configuration sync frequency so that we don't need to
wait so long for configuration changes.

Add a new integration test to ensure that SSL certificate matching
works correctly for wildcards, SNI names, IP addresses and address/port
combinations. Still missing is the default match; for that I need
a portable way to determine a local IP address.
TS-2498: add a build option to install the example plugins

Add the --enable--example-plugins build option to build example
plugins. The naming of this option follows the precedent of the
--enable-experimental-plugins option. The example plugins are always
built, but this option will also cause them to be installed, which
makes them easier to test.