Added New Static Mesh Functions

doc/doc_files/openwindowex.html

@@ -15,6 +15,11 @@
 		 Returns true if window was opened and false if a window could not be opened 
 		</p>
 		<ul>
+		<ul>
+		<li>
+		WINDOWPOS_CENTERED can be used to center the window 
+		</li>
+		</ul>
 		<li>
 		w, h - The size of the window 
 		</li>
@@ -23,6 +28,14 @@
 		</li>
 		<li>
 		aa - The level of AntiAliasing 
+		<ul>
+		<li>
+		A value of 0 means no AntiAliasing which can improve performance 
+		</li>
+		<li>
+		If the value selected is not supported then a lower value will be selected internally 
+		</li>
+		</ul>
 		</li>
 		<li>
 		stencil_buffer (true / false) - determines whether stencil buffer will be used for shadows