Fixes for OS X: GLSL version must be first line in source, don't init glut

(Qt apparently uses it?)

interface/resources/shaders/SkyFromAtmosphere.frag

@@ -1,3 +1,5 @@
+#version 120
+
 //
 // For licensing information, see http://http.developer.nvidia.com/GPUGems/gpugems_app01.html:
 //
@@ -30,8 +32,6 @@
 // Copyright (c) 2004 Sean O'Neil
 //
 
-#version 120
-
 uniform vec3 v3LightPos;
 uniform float g;
 uniform float g2;

interface/resources/shaders/SkyFromAtmosphere.vert

@@ -1,3 +1,5 @@
+#version 120
+
 //
 // For licensing information, see http://http.developer.nvidia.com/GPUGems/gpugems_app01.html:
 //
@@ -30,8 +32,6 @@
 // Copyright (c) 2004 Sean O'Neil
 //
 
-#version 120
-
 uniform vec3 v3CameraPos;		// The camera's current position
 uniform vec3 v3LightPos;		// The direction vector to the light source
 uniform vec3 v3InvWavelength;	// 1 / pow(wavelength, 4) for the red, green, and blue channels

interface/resources/shaders/SkyFromSpace.frag

@@ -1,3 +1,5 @@
+#version 120
+
 //
 // For licensing information, see http://http.developer.nvidia.com/GPUGems/gpugems_app01.html:
 //
@@ -30,8 +32,6 @@
 // Copyright (c) 2004 Sean O'Neil
 //
 
-#version 120
-
 uniform vec3 v3LightPos;
 uniform float g;
 uniform float g2;

interface/resources/shaders/SkyFromSpace.vert

@@ -1,3 +1,5 @@
+#version 120
+
 //
 // For licensing information, see http://http.developer.nvidia.com/GPUGems/gpugems_app01.html:
 //
@@ -30,8 +32,6 @@
 // Copyright (c) 2004 Sean O'Neil
 //
 
-#version 120
-
 uniform vec3 v3CameraPos;		// The camera's current position
 uniform vec3 v3LightPos;		// The direction vector to the light source
 uniform vec3 v3InvWavelength;	// 1 / pow(wavelength, 4) for the red, green, and blue channels

interface/src/Application.cpp

@@ -224,15 +224,18 @@ Application::Application(int& argc, char** argv) :
     // enable mouse tracking; otherwise, we only get drag events
     _glWidget->setMouseTracking(true);
     
-    // initialize glut, which we use for rendering spheres and such
-    glutInit(&argc, argv);
-    
     // initialization continues in initializeGL when OpenGL context is ready
 }
 
 void Application::initializeGL() {
     printLog( "Created Display Window.\n" );
     
+    // initialize glut for shape drawing; Qt apparently initializes it on OS X
+    #ifndef __APPLE__
+    int argc = 0;
+    glutInit(&argc, 0);
+    #endif
+    
     #ifdef _WIN32
     glewInit();
     printLog( "Glew Init complete.\n" );