The functionality of the former "CAP" and "SIGNAL" services is now provided by core's "PD" service.
Fixes #1243.
This patch removes the XML-lookalike content from the inline config node if the test-python program.
This patch changes the top-level directory layout as a preparatory step for improving the tools for managing 3rd-party source codes. The rationale is described in the issue referenced below. Issue #1082