upgraded to angular4, removed ThrowDirections

ThrowDirections and Directions were not configured properly so just have Directions as exported by the swing library

package.json

@@ -23,12 +23,14 @@
         "swing": "^4.2.0"
     },
     "devDependencies": {
-        "@angular/common": "^2.0.2",
-        "@angular/core": "^2.0.2",
-        "angular-cli": "^1.0.0-beta.17",
+        "@angular/common": "^4.0.0",
+        "@angular/compiler": "^4.0.0",
+        "@angular/core": "^4.0.0",
+        "@angular/cli": "1.0.0",
+        "@angular/compiler-cli": "^4.0.0",
         "core-js": "^2.4.1",
         "reflect-metadata": "^0.1.3",
         "rxjs": "5.0.0-beta.12",
-        "zone.js": "^0.6.23"
+        "zone.js": "^0.8.4"
     }
 }

src/index.ts

@@ -1,7 +1,6 @@
 export { SwingStackComponent } from './swing-stack-component';
 export { SwingCardComponent } from './swing-card-component';
 export {
-    ThrowDirection,
     ThrowEvent,
     DragEvent,
     ThrowEventName,

src/swing-stack-component.ts

@@ -3,7 +3,7 @@ declare var require: any;
 import {Component, Input, ContentChildren, QueryList,
   AfterContentInit, EventEmitter } from '@angular/core';
 
-import { ThrowDirection, ThrowEvent, DragEvent, Stack, Card, StackConfig} from './swing';
+import { Direction, ThrowEvent, DragEvent, Stack, Card, StackConfig } from './swing';
 import {SwingCardComponent} from './swing-card-component';
 
 const Swing = require('swing');

src/swing.ts

@@ -4,13 +4,6 @@
 declare var require: any;
 const Swing = require('swing');
 
-export enum ThrowDirection {
-  LEFT = -1,
-  RIGHT = 1,
-  UP = 2,
-  DOWN = 3
-}
-
 export interface ThrowEvent {
   /**
    * The element being dragged.
@@ -21,7 +14,7 @@ export interface ThrowEvent {
    * The direction in which the element is being dragged: Card.DIRECTION_LEFT
    * or Card.DIRECTION_RIGHT
    */
-  throwDirection: ThrowDirection;
+  throwDirection: Direction;
 }
 
 export interface DragEvent {
@@ -37,7 +30,7 @@ export interface DragEvent {
   /**
    * Only available when the event is dragmove
    */
-  throwDirection?: ThrowDirection;
+  throwDirection?: Direction;
   /**
    * Only available when the event is dragmove
    */