Update Win x64 builds to use MSVC 2017

CMakeLists.txt

@@ -35,7 +35,7 @@ if(WIN32 AND MSVC)
 	if(CMAKE_CL_64)
 		# Paths for 64-bit windows builds
 		set(OPENSSL_PATH "C:/dev/OpenSSL-Win64")
-		set(QT5_PATH "C:/dev/Qt/5.10.1/msvc2013_64")
+		set(QT5_PATH "C:/dev/Qt/5.11.2/msvc2017_64")
 		set(VSREDIST "vcredist_x64.exe")
 
                 # Choose between SQLCipher or SQLite, depending whether

installer/windows/variables.wxi

@@ -50,7 +50,7 @@
     -->
 
     <?if $(sys.BUILDARCH)="x64"?>
-        <?define QtPath="C:\dev\Qt\5.10.1\msvc2013_64" ?>
+        <?define QtPath="C:\dev\Qt\5.11.2\msvc2017_64" ?>
         <?define SQLitePath="C:\dev\SQLite-Win64" ?>
         <?define SQLCipherPath="C:\git_repos\SQLCipher-Win64" ?>
         <?define OpenSSLPath="C:\dev\OpenSSL-Win64" ?>