* add EventListeners in the render() method instead of the constructor
* scrollable widget: add EventListeners in render() method instead of constructor +
... move logic from constructor to render()
* linkcatcher: add EventListeners in render() instead of constructor
* fieldmangler: add EventListeners in render() instead of constructor
* edit-bitmap: initialise editorOperations in render() instead of constructor
* list-widget: initialise storyviews in render() instead of constructor
* vars widget: execute Widget.call(this) in render() instead of constructor
... not shure what this should do
* Update fieldmangler.js
* Update edit-bitmap.js
* Update linkcatcher.js
* Update navigator.js
* Update scrollable.js
* Update list.js
* Update vars.js
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