Fix layout of property signal table with const properties.
Fix layout of property signal table with const properties.

Ignore-this: 727342cf44e715ab9edf1fb6d87fc046

darcs-hash:20140607113119-4d2ae-903eef7dab657da2c320b7298e75ab1ffb33987d

johntyree/HsQML,johntyree/HsQML