build: offer windows 64 bit build (issue #300)

* update to clang/llvm to 3.9
* update to qt 5.8
* fixed windows javapathdetector for 64 bit java.
* added LibGui as dependency to tests
* fixed legacy Java 6 install necessary on MacOS
* fixed setting of user path for 64 bit build
* added missing pngs to windows installer
* renamed graph zoom button images
* reverted moving of setupLogging call to fix crash on deployed exe

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src/app/main.cpp

@@ -102,8 +102,6 @@ int main(int argc, char *argv[])
 {
 	QApplication::setApplicationName("Coati");
 
-	setupLogging();
-
 	if (QSysInfo::windowsVersion() != QSysInfo::WV_None)
 	{
 		QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling, true);
@@ -129,6 +127,8 @@ int main(int argc, char *argv[])
 
 		setupApp(argc, argv);
 
+		setupLogging();
+
 		Application::createInstance(version, nullptr, nullptr);
 		ScopedFunctor f([](){
 			Application::destroyInstance();
@@ -179,6 +179,8 @@ int main(int argc, char *argv[])
 
 		setupApp(argc, argv);
 
+		setupLogging();
+
 		qtApp.setAttribute(Qt::AA_UseHighDpiPixmaps);
 
 		QtViewFactory viewFactory;