Added compile/release and resize of GL objects to ShaderAttribute.

Removed the StateAttribute::compose() method.

Fixed the default type value in ShaderAttribute

include/osg/Shader

@@ -291,6 +291,10 @@ class OSG_EXPORT ShaderComponent : public osg::Object
 
         unsigned int getNumShaders() const { return _shaders.size(); }
 
+        virtual void compileGLObjects(State& state) const;
+        virtual void resizeGLObjectBuffers(unsigned int maxSize);
+        virtual void releaseGLObjects(State* state=0) const;
+
     protected:
 
        typedef std::vector< osg::ref_ptr<osg::Shader> >  Shaders;

include/osg/ShaderAttribute

@@ -54,8 +54,6 @@ class OSG_EXPORT ShaderAttribute : public StateAttribute
 
         virtual void apply(State& state) const;
 
-        virtual void compose(ShaderComposer& composer) const;
-
         virtual void compileGLObjects(State& state) const;
 
         virtual void resizeGLObjectBuffers(unsigned int maxSize);

include/osg/StateAttribute

@@ -322,9 +322,6 @@ class OSG_EXPORT StateAttribute : public Object
           */
         virtual void apply(State&) const {}
 
-        /* compose associated shaders via the ShaderComposer. */
-        virtual void compose(ShaderComposer& composer) const {}
-
         /** Default to nothing to compile - all state is applied immediately. */
         virtual void compileGLObjects(State&) const {}