Fixed errors with template two-phase lookup, discovered with GCC 4.7.

src/Math/Vector2.h

@@ -47,8 +47,8 @@ template<class T> class Vector2: public Vector<T, 2> {
         inline T x() const { return Vector<T, 2>::at(0); } /**< @brief X component */
         inline T y() const { return Vector<T, 2>::at(1); } /**< @brief Y component */
 
-        inline void setX(T value) { set(0, value); } /**< @brief Set X component */
-        inline void setY(T value) { set(1, value); } /**< @brief Set Y component */
+        inline void setX(T value) { this->set(0, value); } /**< @brief Set X component */
+        inline void setY(T value) { this->set(1, value); } /**< @brief Set Y component */
 
         /** @copydoc Vector::operator=() */
         inline Vector2<T>& operator=(const Vector<T, 2>& other) { return Vector<T, 2>::operator=(other); }

src/Math/Vector3.h

@@ -65,9 +65,9 @@ template<class T> class Vector3: public Vector<T, 3> {
         inline T y() const { return Vector<T, 3>::at(1); } /**< @brief Y component */
         inline T z() const { return Vector<T, 3>::at(2); } /**< @brief Z component */
 
-        inline void setX(T value) { set(0, value); } /**< @brief Set X component */
-        inline void setY(T value) { set(1, value); } /**< @brief Set Y component */
-        inline void setZ(T value) { set(2, value); } /**< @brief Set Z component */
+        inline void setX(T value) { this->set(0, value); } /**< @brief Set X component */
+        inline void setY(T value) { this->set(1, value); } /**< @brief Set Y component */
+        inline void setZ(T value) { this->set(2, value); } /**< @brief Set Z component */
 
         inline T r() const { return x(); } /**< @brief R component */
         inline T g() const { return x(); } /**< @brief G component */

src/Math/Vector4.h

@@ -66,10 +66,10 @@ template<class T> class Vector4: public Vector<T, 4> {
         inline T z() const { return Vector<T, 4>::at(2); } /**< @brief Z component */
         inline T w() const { return Vector<T, 4>::at(3); } /**< @brief W component */
 
-        inline void setX(T value) { set(0, value); } /**< @brief Set X component */
-        inline void setY(T value) { set(1, value); } /**< @brief Set Y component */
-        inline void setZ(T value) { set(2, value); } /**< @brief Set Z component */
-        inline void setW(T value) { set(3, value); } /**< @brief Set W component */
+        inline void setX(T value) { this->set(0, value); } /**< @brief Set X component */
+        inline void setY(T value) { this->set(1, value); } /**< @brief Set Y component */
+        inline void setZ(T value) { this->set(2, value); } /**< @brief Set Z component */
+        inline void setW(T value) { this->set(3, value); } /**< @brief Set W component */
 
         /**
          * @brief XYZ part of the vector