Ensuring that preside widgets do not get auto wrapped in paragraph tags

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Fixing bad reference to restore page form

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Basic frame of site tree page picker

Have merged and refactored so that we simply re-use the same asset picker behaviour
Pulling back on the features of the sitetree page picker. Now no browse button

Instead, enhancing the results and display of results for the regular uber select for sitetree pages

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Using same icon for widgets on editor toolbar as in the rest of the widget dialogs (magic wand)

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Adjusting padding for new icon on widget containers within the editor body

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Beginnings of Preside link plugin, based entirely on CKEditor's core link plugin

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