Support importing/exporting .zip archives

[gideonthomas]

• Maybe dropbox integration?
  • Just the design
• As zipped files (import/export)
• Drag and drop?
• URL to files?

[humphd]

If we decide to allow DnD into the filetree or editor window somehow, we should consider whether to do this upstream or just in our fork--there are bugs on this and/or Trello cards for this feature in Brackets.

[humphd]

The "unzip into filesystem" stuff is something I wrote here, and we could rework into an extension we load if you need that feature (i.e., don't always load it, since the zip/unzip code isn't small):

https://github.com/humphd/nohost/blob/master/src/webserver.js#L29-L84

[humphd]

From discussions today, our plan is:

• Allow a user to Import a file or files. This could be done with a button and dialog box, drag-and-drop, both
• If it's a regular file or files, we add it to the current filesystem
• If it's a zip file, we ask whether they want to expand it into the current filesystem OR use it as the basis for a new project
• We also allow a user to Open a project by URL (i.e., an existing published URL for a project) or name (username/project-name or something). This could be their own, or someone else's, which is similar to the concept of a remix.

[humphd]

I've done the file-import via dnd, so I've morphed this into the zip import/export bits.

[humphd]

I'm going to do the zip export in #347, and close this now that I've landed the zip import stuff.