Add spec_helper to spec files that were missing it so coveralls can track
Add iterators file to require the files under the iterators directory
Removed an unneeded require
Replace webmock with fakeweb

webmock would not stub out the request for putting a file.
Move web request stubbing for a Dropbox call to DummyDropbox

In order to have a centralized area for stubbing Dropbox calls.
Refactor spec to remove duplication of hard coded strings
Delete the temporary file

Clean up after the tests are over to remove the temporary file that is
created.
Added support to store the dropbox contents to a temporary directory
Add output storage mechanism for Dropbox files

Class used to store files on dropbox instead of in a local file system.
Add scenario for asserting that the file exists when saving a Dropbox
file
Add scenario for asserting that the contents are saved