Fixes for warnings under VisualStudio

include/osg/ColorMatrix

@@ -5,8 +5,8 @@
 #ifndef OSG_COLORMATRIX
 #define OSG_COLORMATRIX 1
 
-#include <osg/StateAttribute>
 #include <osg/Matrix>
+#include <osg/StateAttribute>
 
 namespace osg {
 

include/osg/StateAttribute

@@ -5,6 +5,7 @@
 #ifndef OSG_STATEATTRIBUTE
 #define OSG_STATEATTRIBUTE 1
 
+#include <osg/Export>
 #include <osg/Object>
 #include <osg/GL>
 

src/Demos/hangglide/terrain_coords.h

@@ -1,3 +1,8 @@
+#if defined(WIN32) && !(defined(__CYGWIN__) || defined(__MINGW32__))
+    // disable the double to float errors.
+    #pragma warning( disable : 4305 )
+#endif
+
 static float vertex[][3] = {
 
     { 5998.7998, 41456.1016,   1.7800 },

src/Demos/hangglide/terrain_normals.h

@@ -1,3 +1,7 @@
+#if defined(WIN32) && !(defined(__CYGWIN__) || defined(__MINGW32__))
+    // disable the double to float errors.
+    #pragma warning( disable : 4305 )
+#endif
 
 static float normal[][3] = {
     {  -0.2560,  -0.1125,   0.9600 },

src/Demos/hangglide/terrain_texcoords.h

@@ -1,3 +1,8 @@
+#if defined(WIN32) && !(defined(__CYGWIN__) || defined(__MINGW32__))
+    // disable the double to float errors.
+    #pragma warning( disable : 4305 )
+#endif
+
 static float texcoord[][2] = {
 #ifdef _ORIGINAL_ /* [ */
     {   0.1121,   0.0171 },