p-chips doesn't fire onRemove if chip is deleted with backspace

[ghost81]

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Current behavior
When you have chips in p-chips component and you press backspace to delete the last one,
this doesn't trigger onRemove event

Expected behavior
onRemove to be triggered

Minimal reproduction of the problem with instructions
Nothing special is needed here, but just a p-chips component and behavior attached to onRemove

What is the motivation / use case for changing the behavior?
It should behave like if you remove item from the "x"

Suggested fix
Lines 123-125 to be changed to:

let removedItem = this.value.pop();
this.onModelChange(this.value);
this.onRemove.emit(removedItem);

Please tell us about your environment:
Ubuntu 16.10, Eclipse Neon.1, NPM, Apache 2.4, PHP 7.0

• Angular version: 2.3.0

• PrimeNG version: 1.0.1

• Browser: [all]

• Language: [all | TypeScript X.X | ES6/7 | ES5]

• Node (for AoT issues): node --version =