chore(packaging): rename NPM package to angular2; remove ng2 tag prefix

modules/angular2/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "angular",
+  "name": "angular2",
   "version": "<%= packageJson.version %>.<%= channel %>",
   "description": "Angular 2 - a web framework for modern web apps",
   "homepage": "<%= packageJson.homepage %>",

scripts/publish/npm_publish.sh

@@ -10,7 +10,7 @@ function angular {
   CHANNEL=$1
   cd $ROOT_DIR/dist/js/$CHANNEL/es6/angular2
   rm -fr test
-  npm publish ./ --tag "ng2$CHANNEL"
+  npm publish ./ --tag "$CHANNEL"
 }
 
 function rttsAssert {