release: cut the 1.5.1 release (NativeScript#732)

* release: cut the 1.5.1 release

* docs: update CHANGELOG for 1.5.1

fix(list-view): Do not access destroyed items' ng views.

fix(animations): set nodeType 'element' to newly created views (Nativ…

…eScript#720)

this is required because of checks in DomAnimationEngine
Caused by: angular/angular@80075af

fix(animations): set nodeType 'element' to newly created views (Nativ…

…eScript#720)

this is required because of checks in DomAnimationEngine
Caused by: angular/angular@80075af

fix(router): reuse built-in Angular module loader for offline module …

…loading

Update README

Update README

Update README

fix(typescript): Pin TypeScript version to 2.0.x

Conflicts:
	nativescript-angular/package.json

Merge pull request NativeScript#524 from NativeScript/params-example

Reslove guard added to login example