Allow editing the shot title

[ianb]

Per #441 I find I want to edit the shot title so I can talk about what I am sharing, not what the page was intended to say.

[fzzzy]

Bram, can you figure out what the interaction design for this will be like?

[ianb]

Work is in cc10632

Interaction looks like this:

If you are the owner you hover, get a pointer cursor (not a text select cursor) and a pencil appears:

Click on it and you get editing:

You can hit Enter to accept, Escape to cancel. If you blur without editing the title, it goes back to normal. If you edit the title and blur then the input stays open.

If you erase the title entirely it is reset to the document (or opengraph) title. So if you edit the title, save, then edit and erase everything, you get the original.

When you save a .saving class is added to the title until the save completes.