Rewriting copy to remove stress on Dropbox, and explain that CSVs can be edited in any spreadsheet program.
Rewriting copy to remove stress on Dropbox, and explain that CSVs can be edited in any spreadsheet program.

Also removed the 2 column-layout below the upload form.

stamen/maptcha-v2,stamen/maptcha-v2,stamen/maptcha-v2