Export button

[benrito]

1. Remove the existing “project” panel UI entirely

2. Create an always-visible save/share button

3. Clicking opens a modal with:

• an option to name your project, describe your project, give a contact email and twitter handle (for use in Viewing exported projects #77)
• small notice that says: "make sure you double check this information; it can't be changed"
• if first time clicking submit, go to step 4
• if not first time, show "if you make changes and export again, we'll make a new video." After user clicks "OK" go to step 4

4. Project is saved at Archive.org and sent to export queue

• each "save" will be a new Popcorn Maker asset at archive.org (see Viewing exported projects #77)

5. The UI explains what happens next:

• "great! we're cooking up your video. it can take up to 10 minutes." (see Export experience #75)
• provide a link to the video
• a smaller link "if you want to remix this project, return here"

[benrito]

Sam's branch has a "share" button now, that calls his rendering service:

antiboredom@87c9da0

We should figure out how to combine this with:

1. tracey's "publish asset to archive" flow

2. tracey's modal UI