some effc++ fixes

Object.hh

@@ -21,9 +21,13 @@ public:
     construct(std::get<0>(tmp));
   }
 
+  Object(Object const& copy) = delete;
+  
   ~Object() {
     glDeleteVertexArrays(1, &_vaID);
   }
+
+  Object& operator=(Object const& copy) = delete;
   
   void draw(glm::mat4 const& modelview, Program *override = nullptr) const {
     glBindVertexArray(_vaID);