use correct severity level for waypoint reached event

Be more forgiving about component IDs, but warn developers. Do *not* translate developer debug messages (they would show up in the translation tool). Anyone without sufficient command of the english language will have a hard time contributing or debugging this application and we should not entangle the poor translators in this.

Build fixes

Clears the persisted settings for the QGC

This disables Windows C Runtime assert dialogs from popping up.

Recent threading changes have broken both of these. They will be fixed
in a separate pull request. Also added new CmdLineOptParser.cc/h

Fixed unused variable warning in GAudioOutput when speech is disabled.

Minor improvements to UASWaypointManager.cc

This code previously existed, but wasn't always triggered. Now it should be.

Also these messages are now all translated.