Update ng2-archwizard version to 1.7.0 (#12)

- update dev dependencies to current versions

Author: madoar

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ng2-archwizard",
-  "version": "1.6.0",
+  "version": "1.7.0",
   "license": "MIT",
   "description": "An angular 2 module containing a wizard component and its supporting components and directives",
   "homepage": "https://github.com/madoar/ng2-archwizard",
@@ -43,11 +43,11 @@
     "@angular/platform-browser": "^4.0.1",
     "@angular/platform-browser-dynamic": "^4.0.1",
     "@angular/router": "^4.0.1",
-    "@angularclass/hmr": "^1.2.2",
+    "@angularclass/hmr": "^2.1.1",
     "@angularclass/hmr-loader": "^3.0.2",
     "@ngtools/webpack": "^1.2.9",
     "@types/jasmine": "^2.5.42",
-    "@types/node": "^7.0.5",
+    "@types/node": "^8.0.6",
     "@types/selenium-webdriver": "^3.0.1",
     "angular-router-loader": "^0.6.0",
     "angular2-template-loader": "^0.6.2",
@@ -101,7 +101,7 @@
     "typescript": "^2.2.2",
     "typings": "^2.1.0",
     "url-loader": "^0.5.6",
-    "webpack": "^2.3.3",
+    "webpack": "^3.0.0",
     "webpack-dev-server": "^2.4.2",
     "zone.js": "^0.8.5"
   },