Task #2050: Converted locally thrown non-LOFAR exceptions into LOFAR exceptions. Removed some more catch clauses of non-LOFAR exceptions.

Task #2050: Added our own terminate handler and removed catch clauses for exceptions other than LOFAR::Exception.

Task #2050: Added our own terminate handler to the last couple of programs that do catch exceptions. A few sources are not updated, because they only depend on Casacore, or because catching std::exception suffices.

Task #2050: Added script with some useful commands to find main programs that do/don't catch exceptions and do/don't use Exception::terminate() as terminate handler. This script should not be merged with the trunk.

Task #3156: Merged missing mergeinfo in range 21299:21373 from the trunk into the branch, because 'svn merge --reintegrate' was complaining.

Task #3156: Removed empty USG directory that was accidentally added by the merge of task #3039 (r21346)

Task #2699: The PyBDSM test scripts depend on some Python modules, that must be built before running the tests.

Task #1254: Fixed a bug in lofar_add_test(), which caused test scripts not to be built. This bug only surfaced when the test script has a dependency on a buildable target (specified with the DEPENDS option), like for example a Python module.

Task #3394: Patch for ObservationControl: Check on number of stations only when processType=="Observation".