Various isc. functions broken

[acarur01]

In the latest build (08-31)

/isomorphic/system/reference/SmartClient_Explorer.html#dialogs

Clicking on any of the buttons in the example will generate a js error

this.messageLabel is undefined
[Break On This Error] isc.showPrompt(_1,_4);var _5=isc.Dialo...youtChildren();this.layoutChildren()}