Closes #80 - bindable width and height for Containers

[vratojr]

Updated the Beans in order to take in account that "ResizableWidgetCfg" now declares bindings.
Updated dialog in order to react to resize correctly when bound.
Fixed div in order to have a proper call to container resizing method.

[vratojr]

TestApplication in: L:\Common-Temporary\AriaTemplates\testApp.7z

[vratojr]

Awaiting a code review.
And maybe some automatic testing.

[jakub-g]

Original issue: #80

[jakub-g]

This code in Container.js is problematic:

    this._sizeConstraints = (cfg.width == -1 && (!!cfg.minWidth || !!cfg.maxWidth))
            || (cfg.height == -1 && (!!cfg.minHeight || !!cfg.maxHeight));

It means that min/max width/height constraints are applied <==> width / height are equal to -1, which won't ever happen when we bind width / height to the data model. So this logic needs to be changed.

[jakub-g]

The issue is under development, but this pull request won't go into master as it needs to be worked on. I'll open a new pull request when I'm done.

[jakub-g]

The functionality landed in 1.3.5 through #347