Mm199

Permissions are all in.
Edit menus available for projects, tutorials and visualizations.
Datasets have some hide/delete links on the project show page.
User page has administration links.

Need to add in media object delete ui element **(There's really no room for this as-is - use user page)**
Need to add in the export and edit links for datasets (when available)

More thoughts:
User pages should only show hidden items if they belong to you (the session owner).
JSON api hashes should only include hidden items on a show#user who is the session owner (with recur: true as well).

#199