Show the tile type on the compose tab:

This shows the type of a tile (Basic Tile, Collection Tile, etc...) in the
top right of the tile on the compose tab.  This makes it easier for the user
to know how they can add content -- especially if the user does not have
enough permission to view the layout tab.
Show the tile type name in the top-center of a tile, instead of the top-right.
Merge pull request #361 from warpr/show-tile-type-on-compose-tab

Show the tile type on the compose tab: