File system for pyFilesystem which uses the dropbox API.
A Note About Caching
This library has built in caching. There are times when you will want to disable caching. A user can change the file on the remote server and our code/cache will not be notified of the change. One example of where this is an issue is before you read/download a file from the remote side if you are using cached meta info to specify the download size.