use namespaces instead of modules

src/Actions.ts

@@ -1,4 +1,4 @@
-module Actions {
+namespace Actions {
     export function init(world: World, config: Config) {
         return {
             focusLeft: () => {

src/layout/Desktop.ts

@@ -146,7 +146,7 @@ class Desktop {
     }
 }
 
-module Desktop {
+namespace Desktop {
     export type Config = {
         marginTop: number,
         marginBottom: number,

src/world/Clients.ts

@@ -1,4 +1,4 @@
-module Clients {
+namespace Clients {
     export function canTileEver(kwinClient: AbstractClient) {
         return kwinClient.resizeable;
     }