Fixes for building on vc12 (vs 2013), these are primarily just missing includes

engine/shared/library/sharedMath/src/shared/CompressedQuaternion.cpp

@@ -11,6 +11,7 @@
 
 #include "sharedMath/Quaternion.h"
 
+#include <algorithm>
 #include <limits>
 #include <vector>
 

engine/shared/library/sharedMath/src/shared/Rectangle2d.h

@@ -11,6 +11,9 @@
 #ifndef INCLUDED_Rectangle2d_H
 #define INCLUDED_Rectangle2d_H
 
+#include <algorithm>
+#include <cmath>
+
 //-------------------------------------------------------------------
 
 class Line2d;

engine/shared/library/sharedMath/src/shared/core/RangeLoop.cpp

@@ -11,6 +11,8 @@
 #include "sharedFoundation/ConfigFile.h"
 #include "sharedMath/ConfigSharedMath.h"
 
+#include <cmath>
+
 // ----------
 
 float RangeLoop::clip ( float x )