Multiple dropdown autocomplete can't be disabled

[utolkach]

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[ х] bug report

Plunkr Case (Bug Reports)
http://plnkr.co/edit/9sPhjqnkRLZKUt9RLdR7?p=preview
sorry for ugly css:)

Current behavior
Currently multiple dropdown autocomplete has enabled input when control is disabled. Also is reproduced for multiple autocomplete (not dropdown), and calendar input.

Expected behavior
Input is also disabled

Minimal reproduction of the problem with instructions
There is no any steps, just try to enter text into input
http://plnkr.co/edit/9sPhjqnkRLZKUt9RLdR7?p=preview

What is the motivation / use case for changing the behavior?
We need to prevent entering values into multiple dropdown autocopmlete.

Please tell us about your environment:
Win10, npm v3.10.8, IIS, nodejs v6.9.1

• Angular version:
  2.0

• PrimeNG version:
  2.0

• Browser:
  Chrome, IE and others.

• Language:
  TypeScript 2.0

• Node (for AoT issues):
  node --version = v6.9.1