Prepare 2.0.0 release (#50)

- prepare ng2-archwizard for release
- increase version to 2.0.0
- adjust package description to also fit later angular releases
- fix index.js mention in package.js
- adjust example description text in the README

README.md

@@ -467,4 +467,4 @@ Both instances, the wizard state and the navigation mode, can also be obtained f
 ## Example
 You can find an basic example project using `ng2-archwizard` [here](https://madoar.github.io/ng2-archwizard-demo). 
 The sources for the example can be found in the [ng2-archwizard-demo](https://github.com/madoar/ng2-archwizard-demo) repository.
-It illustrates how the wizard looks like and how the different settings can change its layout.
+It illustrates how the wizard looks like and how the different settings can change its layout and behavior.

package.json

@@ -1,8 +1,8 @@
 {
   "name": "ng2-archwizard",
-  "version": "1.8.0-develop",
+  "version": "2.0.0",
   "license": "MIT",
-  "description": "An angular 2 module containing a wizard component and its supporting components and directives",
+  "description": "An angular 2+ module containing a wizard component and its supporting components and directives",
   "homepage": "https://github.com/madoar/ng2-archwizard",
   "author": {
     "name": "Marc Arndt",
@@ -104,6 +104,6 @@
   },
   "files": [
     "dist",
-    "index.ts"
+    "index.js"
   ]
 }