add autotest for dynamic rule outputs

Task-number: QBS-370

Change-Id: Ib70597d8eeed711842cfb86f8d1ecb434f6b40bd
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>
Add a JS extension for working with property lists.

Change-Id: Ib9413501f647f52b60507daf85bdfe8e560d7e08
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Fix build failures in IB module when using older versions of Xcode.

Change-Id: I2c2fe4800dcc50e9760254f25c8e5e3e03b6f8f0
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>