reading back the variable from the device currently does not work, so instead directly pass it to the simulator module.

partial fix for problems due to moving to new ControlSystemAdapter structure: allocate and use the buffer from the NDRegisterAccessor
tests still do not pass

Adapation to the unified versions of ControlSystemAdapter and DeviceAccess.

Status: Library compiles, tests do not yet compile.

Revert "Capture only coverage data for the current project in the first place, instead of extracting it from all coverage data in a second step. This seems to be needed as extraction spuriously might fail in some cases."

This reverts commit ce14dcd0.

Reason for the revert: The change did not work on Ubuntu 12.04 due to an old version of lcov.

Capture only coverage data for the current project in the first place, instead of extracting it from all coverage data in a second step. This seems to be needed as extraction spuriously might fail in some cases.

Refactored the tests so that all modules are inside the application classes. Otherwise the shutdown scheme might break at some point.

- extended the trigger tests
- removed some debug output

made the message about disabled tests due to missing packages more specific by showing explicitly which package is missing

Introduced the DeviceModule class which provides an interface to obtain VariableNetworkNodes for device registers