Race Conditon in Shutdown

[James Powell]

Signal to “Shutdown Logger.vi” happens in Stop Message handling, BEFORE the last messages are logged, and before teh logger has closed the SQLite file. This is at best confusing, and may lead to lost messages in an exe (which may by killed before the Logger has a chance to write the last few messages).

[James Powell]

Rewrote so "Shutdown.vi" waits till log file written and closed.