Removed the [delete] links from milestones for the non-owners of the approach.
Added usernames and links to their user pages in approach view.
Added also the creation date in approach view.
Rearranged elements in approach view to implement editing only for author.
Added 'edit' links to milestone visible to author.
Removed direct link to approach details for owner, and added the mouse cursor indicating drag-and-drop scrollability of milestones.
Modified approach template to make approache appear in the context of its idea, so the reader would not get lost: idea is h1, approach is h2 is natural for document naming, and should be natural for search.