A previous patch changed the way tests are run by piping the output
into sed to indent the output. This broke checking the return code of
the test because the return code is really that of sed.
Fix this by taking a dependecy on bash and using PIPESTATUS to get
the return code fo the test.
It's not very good, but it supports all of the options by the
previous far-worse Makefile configure targets, and also now supports
out-of-tree builds.
Also include the relevent updates to the .buildbot script and
.gitignore.
Using lcov, generate an HTML report via "make coverage-report"
describing the coverage of each file. Ideally, this will get added to
an automated testing pipeline.
Signed-off-by: Max Regan <mgregan2@gmail.com>
