Integrate C++11 branch into 5_1-new

src/arch/ArchHooks/ArchHooks.cpp

@@ -9,7 +9,7 @@ bool ArchHooks::g_bQuitting = false;
 bool ArchHooks::g_bToggleWindowed = false;
 // Keep from pulling RageThreads.h into ArchHooks.h
 static RageMutex g_Mutex( "ArchHooks" );
-ArchHooks *HOOKS = NULL; // global and accessible from anywhere in our program
+ArchHooks *HOOKS = nullptr; // global and accessible from anywhere in our program
 
 ArchHooks::ArchHooks(): m_bHasFocus(true), m_bFocusChanged(false)
 {