chore(tslint): add tslint & clean up code

src/plugins/imagepicker.ts

@@ -3,18 +3,18 @@ import {Plugin, Cordova} from './plugin';
 export interface ImagePickerOptions {
     // max images to be selected, defaults to 15. If this is set to 1, upon
     // selection of a single image, the plugin will return it.
-    maximumImagesCount?: number,
+    maximumImagesCount?: number;
 
     // max width and height to allow the images to be.  Will keep aspect
     // ratio no matter what.  So if both are 800, the returned image
     // will be at most 800 pixels wide and 800 pixels tall.  If the width is
     // 800 and height 0 the image will be 800 pixels wide if the source
     // is at least that wide.
-    width?: number,
-    height?: number,
+    width?: number;
+    height?: number;
 
     // quality of resized image, defaults to 100
-    quality?: number
+    quality?: number;
 }
 
 /**
@@ -54,5 +54,5 @@ export class ImagePicker {
   @Cordova({
     callbackOrder: 'reverse'
   })
-  static getPictures(options: ImagePickerOptions): Promise<any> { return }
+  static getPictures(options: ImagePickerOptions): Promise<any> { return; }
 }