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Edit controller checks if signaled nodeId is deletable. Adds errorMessage render parameter if needed. Adds successMessage render parameter if success.
That the re-order glyph appears even when there's only one item of a type (only one favorited portlet or only one favorited collection) is a feature not a bug: on design consult, the suggestion was that the glyph is worth retaining to communicate to the user that if he or she had more items, they would be re-order-able.
Adding to favorites
Add to Favorites is added to the per-portlet options menu:
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