Added replacements for the following functions:
Unity GUI:
public static Rect ModalWindow (int id, Rect clientRect, UnityEngine.GUI.WindowFunction func, string text);
public static Rect ModalWindow (int id, Rect clientRect, UnityEngine.GUI.WindowFunction func, Texture image);
public static Rect ModalWindow (int id, Rect clientRect, UnityEngine.GUI.WindowFunction func, GUIContent content);
public static Rect ModalWindow (int id, Rect clientRect, UnityEngine.GUI.WindowFunction func, string text, GUIStyle style);
public static Rect ModalWindow (int id, Rect clientRect, UnityEngine.GUI.WindowFunction func, Texture image, GUIStyle style);
public static Rect ModalWindow (int id, Rect clientRect, UnityEngine.GUI.WindowFunction func, GUIContent content, GUIStyle style);
Unity GuiLayout:
public static Rect Window (int id, Rect screenRect, UnityEngine.GUI.WindowFunction func, Texture image, GUIStyle style, params GUILayoutOption[] options);
public static Rect Window (int id, Rect screenRect, UnityEngine.GUI.WindowFunction func, GUIContent content, GUIStyle style, params GUILayoutOption[] options);