Fix Type and PeerDependency

As of #10 the public method restore was renamed to reset, which is a breaking change for someone who used this wrong method.

As of #13 @angular/core is now declared as a peer dependency.

Bugfix #3

Set target to ES5 because of #3

Bugfix angular 4

Updated dependency to @angular/core to be able use this library with angular 4

Initial Release

v1.0.1

First working version