Add the ability to upload multiple logs at once

[rgriffith]

This would be useful in cases where one has more than one file to upload at a time, this would allow you to upload multiple files (and optionally tag them each as well).

Drag and drop upload into the "create" modal would also be nice.

[rgriffith]

Found a pretty nice uploader at http://fineuploader.com/ that looks like it can handle multiple files without using flash. It also has drop to upload functionality.