Merge pull request #72 from terrasea/master

Alert dialog if user imports non JSON
Add James Hurford as core collaborator
Distinguish between export file and regular file uploads

When performed via drag and drop.

Paired with @terrasea

Fixes #67
Minor re-org of the main menu

Move Remove item up with other single project actions. Add divider around
multi-project import/export items.

Paired with @alexgchacon

Fixes #66
Remove unnecessary TODO

We're not going to handle multiple uploads -- at least until we have
a way to represent mutliple items in the UI immediately after the
upload.

Paired with @alexgchacon

Fixed #59
Spike a something's new indicator for main menu button

Paired with @alexgchancon

#73
Add Alex Chacon as a contributor. Thanks Alex!
Push the what's new star out of the menu button

Keeps tests clean and the button clickable.

Paired with @alexgchacon

#73
Keyboard shortcuts should never focus the editor

Paired with @alexgchacon

Fixes #74