  Copyright (C) 2011 Appora contributors.
  Licenced under CC BY-SA 3.0
  (see <http://creativecommons.org/licenses/by-sa/3.0/>)

The file data module expects files to be organised as follow:
Each application has a folder which name is the application identifier.
The content of each folder should be as follow:
- each version has its own directory named by its version code
- <version_code>/application: this file contains the binary application
- icon: this file is the icon of the application

For example the following files tree is correct
/
/my_application
/my_application/0
/my_application/0/application
/my_application/1
/my_application/1/application
/my_application/icon