Cleanup CMakeLists a bit more
Display plugin info in error reports
Display plugin info before verifying chain I/O
listDirectory now returns list of files

Much cleaner interface, also cleaned up some of the callers to this function
to avoid manual iteration.
Removing some TODO's which aren't going to be done
Use correct location for Program Files on Windows (untested)
Clean up help for mrswatsontest options

Also renamed option for "--fail" to "--quiet". Much better.
Option to keep files from a test run
Remove check for resources which never failed
Analysis should be floating point, not int!
Clean up MidiSequence tests