Docs: HemisphereLight: Renamed hex to skyColor and groundColor. Closes #3215.

docs/api/lights/HemisphereLight.html

@@ -15,11 +15,11 @@
 
 		<h2>Constructor</h2>
 
-		<h3>[name]( [page:Float hex], [page:Float hex], [page:Float intensity] )</h3>
+		<h3>[name]( [page:Float skyColor], [page:Float groundColor], [page:Float intensity] )</h3>
 
         <div>
-		[page:Integer hex] — Numeric value of the RGB sky color.<br />
-		[page:Integer hex] — Numeric value of the RGB ground color.<br />
+		[page:Integer skyColor] — Numeric value of the RGB sky color.<br />
+		[page:Integer groundColor] — Numeric value of the RGB ground color.<br />
 		[page:Integer intensity] — The intensity of the light.
 		</div>