Added "External Ambient Module Declarations" for most modules.

Now they are required by module name e.g require("file-system") instead of by file name.

camera/camera.android.ts

@@ -1,4 +1,4 @@
-import appModule = require("application/application");
+import appModule = require("application");
 
 var REQUEST_IMAGE_CAPTURE: number = 1;
 var REQUEST_SELECT_PICTURE: number = 2;

camera/camera.d.ts

@@ -1,36 +1,39 @@
 
-import promises = require("promises/promises");
-import imageSource = require("image-source/image-source");
+declare module "camera" {
 
-export declare enum CameraPosition {
-    FRONT = 0,
-    BACK = 1,
+    import promises = require("promises/promises");
+    import imageSource = require("image-source/image-source");
+
+    enum CameraPosition {
+        FRONT = 0,
+        BACK = 1,
+    }
+
+    enum FlashMode {
+        AUTO = 0,  // default
+        ON = 1,
+        OFF = 2
+    }
+
+    interface Options {
+        /**
+        * Specifies which Camera to use.
+        */
+        cameraPosition?: CameraPosition;
+
+        /**
+        * Specifies flash mode.
+        */
+        flashMode?: FlashMode;
+    }
+
+    // TODO most of hardware related parts need to handle onPause and onResume of the calling activities
+    class CameraManager {
+        takePicture(params: any, onSuccess: (imageData: any) => any, onError?: (error: any) => any);
+
+        // options { useSavedPhotos: true }
+        pictureFromLibrary(params: any, onSuccess: (imageData: any) => any, onError?: (error: any) => any);
+    }
+
+    var takePicture: (options?: Options) => promises.Promise<imageSource.ImageSource>;
 }
-
-export declare enum FlashMode {
-    AUTO = 0,  // default
-    ON = 1,
-    OFF = 2
-}
-
-export interface Options {
-    /**
-    * Specifies which Camera to use
-    */
-    cameraPosition?: CameraPosition;
-
-    /**
-    * Specifies flash mode
-    */
-    flashMode?: FlashMode;
-}
-
-// TODO most of hardware related parts need to handle onPause and onResume of the calling activities
-export declare class CameraManager {
-    takePicture(params: any, onSuccess: (imageData: any) => any, onError?: (error: any) => any);
-
-    // options { useSavedPhotos: true }
-    pictureFromLibrary(params: any, onSuccess: (imageData: any) => any, onError?: (error: any) => any);
-}
-
-export declare var takePicture: (options?: Options) => promises.Promise<imageSource.ImageSource>;