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

fortune cookie message = An old acquaintance will enter your life.

src/lib_gui/utility/path_detector/java_runtime/JavaPathDetectorMac.cpp

@@ -21,6 +21,16 @@ std::vector<FilePath> JavaPathDetectorMac::getPaths() const
 	std::string output = utility::executeProcess(command.c_str());
 
 	if (output.size())
+	{
+		javaPath = FilePath(utility::trim(output) + "/jre/lib/jli/libjli.dylib");
+	}
+
+	if (!javaPath.exists())
+	{
+		javaPath = FilePath("/usr/lib/libjli.dylib");
+	}
+
+	if (!javaPath.exists() && output.size())
 	{
 		javaPath = FilePath(utility::trim(output) + "/jre/lib/server/libjvm.dylib");
 	}

src/lib_gui/utility/path_detector/java_runtime/JavaPathDetectorWindows.cpp

@@ -3,6 +3,8 @@
 #include <QSettings>
 #include <QSysInfo>
 
+#include "utility/utilityApp.h"
+
 JavaPathDetectorWindows::JavaPathDetectorWindows(const std::string javaVersion)
 	: JavaPathDetector("Java " + javaVersion + " for Windows", javaVersion)
 {
@@ -16,7 +18,10 @@ std::vector<FilePath> JavaPathDetectorWindows::getPaths() const
 {
 	QString key = "HKEY_LOCAL_MACHINE\\SOFTWARE\\";
 
-	key += "Wow6432Node\\"; // we need java 32 bit
+	if (utility::getApplicationArchitectureType() == APPLICATION_ARCHITECTURE_X86_32)
+	{
+		key += "Wow6432Node\\";
+	}
 
 	key += ("JavaSoft\\Java Runtime Environment\\" + m_javaVersion).c_str();