tests: factorize has_opt handling

Change-Id: I7d5551af250c1e24177e0e7eed0bd622bb06ca29
autodoc: allow to exclude modules from auto-generation

Some projects need to not generate and publish documentation for some of
their modules. This patch adds an option to list modules that should be
excluded from documentation auto generation.

Change-Id: I944a6ad5faa113ca26eb32b78be1bfc41e1387ef
Clean up links and docs

Move some developer information for running tests out of the README to
the documentation.

Change the home page link to point to the launchpad page.

Add a link to the bug tracker to the README.

Change-Id: I29bdb071eb64bccc561844c130a256b8f998da5f
Closes-Bug: #1318548
Merge "Clean up links and docs"
Merge "tests: factorize has_opt handling"
Merge "autodoc: allow to exclude modules from auto-generation"