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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.gitignore

@@ -37,6 +37,7 @@
 
 *.coatidb
 *.suo
+*.vcxproj.user
 *.sqlite
 *.pch
 *.swp
@@ -51,7 +52,8 @@ Makefile
 
 /deployment/windows/wixSetup/bin
 /deployment/windows/wixSetup/build
-/deployment/windows/wixSetup/CustomActions/SetupAppSettings/obj/x86/Release
-/deployment/windows/wixSetup/CustomActions/UninstallRemoveLogFolder/obj/x86/Release
+/deployment/windows/wixSetup/CustomActions/UninstallRemoveLogFolder/bin
+/deployment/windows/wixSetup/CustomActions/UninstallRemoveLogFolder/obj
 /deployment/windows/wixSetup/Setup/build/Setup/Release
+/deployment/windows/wixSetup/Setup/build/Setup/x64
 /deployment/windows/wixSetup/Setup/build/Setup.VC.db