Bug fixes

So no need for connect window close test here

Also moved log file settings save check to mavlink protocol

Better QLoggingCategory support, fixed parameter list request

Also added/converted some logging to debug the problem caused by the
two parameter request apis.

This removes confusion as to whether you call UAS::requestParameters
(incorrect) or QGCUASParamManager::requestParameterList (correct) from
client code.

Param boot hang

Also only update the full tree one time once the full parameter list is
ready.

Mavlink log test

Conflicts:
	qgroundcontrol.pro

Previously link were just destroyed

This makes unit test output easier to read

Update README for QLoggingCategory usage

Flight mode setup

Place this file in the location specified here:
http://qt-project.org/doc/qt-5/qloggingcategory.html

This allows unit tests to simulate user selections in a combo box

Remove multiple overrides of activeUASSet signal

This allows use of compile time Object::connect syntax