Update packages for Angular 2.0.1 (#44)

* Update packages for Angular 2.0.1

Using tilde since Angular 2.0.0 and up uses semantic versioning

* Refer to 2.0.0

package.json

@@ -1,7 +1,7 @@
 {
   "name": "angular2-websocket",
   "main": "angular2-websocket",
-  "version": "0.8.0",
+  "version": "0.8.1",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
     "compile": "tsc",
@@ -13,21 +13,21 @@
     "url": "git+https://github.com/afrad/angular2-websocket.git"
   },
   "dependencies": {
-    "@angular/common": "2.0.0",
-    "@angular/compiler": "2.0.0",
-    "@angular/core": "2.0.0",
+    "@angular/common": "~2.0.0",
+    "@angular/compiler": "~2.0.0",
+    "@angular/core": "~2.0.0",
     "core-js": "^2.4.1",
-    "reflect-metadata": "^0.1.3",
+    "reflect-metadata": "^0.1.8",
     "rxjs": "5.0.0-beta.12",
-    "zone.js": "^0.6.23"
+    "zone.js": "^0.6.25"
   },
   "devDependencies": {
-    "codelyzer": "~0.0.26",
+    "codelyzer": "^1.0.0-beta.0",
     "grunt": "~0.4.1",
     "grunt-typescript": "~0.2.4",
     "grunt-contrib-uglify": "~0.2.4",
-    "tslint": "3.13.0",
-    "typings": "^1.3.2",
-    "typescript": "^2.0.2"
+    "tslint": "^3.15.1",
+    "typings": "^1.4.0",
+    "typescript": "^2.0.3"
   }
 }