Merge branch 'modules' of https://github.com/angular-ui/ui-scroll into modules

Author: dhilt

src/modules/viewport.js

@@ -115,7 +115,7 @@ export default function Viewport(elementRoutines, buffer, element, controllers,
 				return;
 			}
 
-			// precise heights calculation, items that were in buffer once
+			// precise heights calculation, items that were in buffer at some point
 			let topPaddingHeight = 0;
 			let bottomPaddingHeight = 0;
 
@@ -185,4 +185,4 @@ export default function Viewport(elementRoutines, buffer, element, controllers,
 	});
 
 	return viewport;
-}
+}