Spelling minor updates

docs/api/cameras/Camera.html

@@ -27,6 +27,7 @@
 
 
 		<h2>Properties</h2>
+		<div>See the base [page:Object3D] class for common properties.</div>
 
 		<h3>[property:Boolean isCamera]</h3>
 		<div>
@@ -54,6 +55,7 @@
 		</div>
 
 		<h2>Methods</h2>
+		<div>See the base [page:Objct3D] class for common methods.</div>
 
 		<h3>[method:Vector3 getWorldDirection]( [page:Vector3 optionalTarget] )</h3>
 		<div>

docs/api/cameras/CubeCamera.html

@@ -56,6 +56,7 @@
 
 
 		<h2>Properties</h2>
+		<div>See the base [page:Object3D] class for common properties.</div>
 
 		<h3>[property:WebGLRenderTargetCube renderTarget]</h3>
 		<div>
@@ -63,7 +64,7 @@
 		</div>
 
 		<h2>Methods</h2>
-
+		<div>See the base [page:Object3D] class for common methods.</div>
 
 
 		<h3>[method:null updateCubeMap]( [page:WebGLRenderer renderer], [page:Scene scene] )</h3>

docs/api/cameras/StereoCamera.html

@@ -45,10 +45,12 @@
 		<div>Default is *0.064*.</div>
 
 		<h3>[property:PerspectiveCamera cameraL]</h3>
-		<div>Left camera.</div>
+		<div>Left camera. This is added to [page:Layers layer 1] - objects to be rendered
+		by the left camera must also be added to this layer.</div>
 
 		<h3>[property:PerspectiveCamera cameraR]</h3>
-		<div>Right camera.</div>
+		<div>Right camera.This is added to [page:Layers layer 2] - objects to be rendered
+		by the left camera must also be added to this layer.</div>
 
 
 		<h2>Methods</h2>