removed all the #version 330 core lines in shader

shaders/bloom.frag.glsl

@@ -1,5 +1,3 @@
-#version 330 core
-
 uniform sampler2DRect colorSampler;
 uniform sampler2DRect blurSampler0;
 uniform sampler2DRect blurSampler1;

shaders/blur.frag.glsl

@@ -1,5 +1,3 @@
-#version 330 core
-
 // linear sampling gaussian blur (kernel size : 9)
 // from http://rastergrid.com/blog/2010/09/efficient-gaussian-blur-with-linear-sampling
 

shaders/forward.frag.glsl

@@ -1,5 +1,3 @@
-#version 330 core
-
 uniform vec3 lightColor;
 
 uniform float materialNs;

shaders/forward.vert.glsl

@@ -1,5 +1,3 @@
-#version 330 core
-
 uniform mat4 modelViewMatrix;
 uniform mat4 MVP;
 uniform mat4 viewMatrix;

shaders/gbuffer.frag.glsl

@@ -1,4 +1,3 @@
-#version 330 core
 layout (location = 0) out vec3 outNormal;
 layout (location = 1) out vec4 outColor;
 layout (location = 2) out vec4 outSpecular;

shaders/gbuffer.vert.glsl

@@ -1,5 +1,3 @@
-#version 330 core
-
 #ifdef NORMAL_MAP
 out mat3 tangentSpace;
 #else

shaders/hdr.frag.glsl

@@ -1,5 +1,3 @@
-#version 330 core
-
 uniform sampler2DRect colorSampler;
 
 uniform vec3 minMaxMean;

shaders/luminance.frag.glsl

@@ -1,5 +1,3 @@
-#version 330 core
-
 uniform sampler2DRect colorSampler;
 uniform float threshold;
 

shaders/reduction.frag.glsl

@@ -1,5 +1,3 @@
-#version 330 core
-
 uniform sampler2DRect minMaxMeanSampler;
 uniform int width;
 uniform int height;

src/light.cpp

@@ -171,8 +171,7 @@ unsigned int Light::getFlags(Light* l)
 }
 
 const char* Light::vertSource =
-        "#version 330 core\n\
-        layout(location = 0)in vec3 inPosition;\n\
+        "layout(location = 0)in vec3 inPosition;\n\
         #ifdef ALPHA_MASK\n\
         layout(location = 2)in vec2 inTexCoord;\n\
         out vec3 varTexCoord;\n\
@@ -187,8 +186,7 @@ const char* Light::vertSource =
         }\n";
 
 const char* Light::fragSource =
-        "#version 330 core\n\
-        #ifdef ALPHA_MASK\n\
+        "#ifdef ALPHA_MASK\n\
         uniform sampler2D alphaMask;\n\
         in vec3 varTexCoord;\n\
         #endif\n\

src/posteffectmodule.cpp

@@ -218,8 +218,7 @@ void PostEffectModule::setShaders(const std::string &luminanceFragSource,
 }
 
 const std::string PostEffectModule::vertSource =
-        "#version 330 core\n\
-        layout(location = 0)in vec2 inPosition;\n\
+        "layout(location = 0)in vec2 inPosition;\n\
         void main(void) {\n\
             gl_Position = vec4(inPosition, 0.0, 1.0);\n\
         }\n";

src/skyboxmodule.cpp

@@ -129,8 +129,7 @@ const GLubyte SkyboxModule::skyboxIndices[] = {
 };
 
 const std::string SkyboxModule::vertSource =
-        "#version 330 core\n\
-        layout(location = 0)in vec3 inPosition;\n\
+        "layout(location = 0)in vec3 inPosition;\n\
         out vec3 varTexCoord;\n\
         uniform mat4 MVP;\n\
         void main()\n\
@@ -140,8 +139,7 @@ const std::string SkyboxModule::vertSource =
         }\n";
 
 const std::string SkyboxModule::fragSource =
-        "#version 330 core\n\
-        in vec3 varTexCoord;\n\
+        "in vec3 varTexCoord;\n\
         out vec4 outColor;\n\
         uniform samplerCube skybox;\n\
         void main()\n\