Data files for modules should be treated differently than resources

[jadkik]

Resources for the modules are generally static files which could be used inside the application, such as images, icons, etc.

Data files are files generated by modules for the use of the user, or data specific to this setup and/or user.

Currently, data files, if used, are saved alongside the resources, using the same interface.

However, it is not guaranteed that the resources are in a writable directory. Depending on the setup, modules could be distributed in egg files (archives), directories with write access (~/.config/coinbox/modules for example), or directories without write access (/usr/share/coinbox/modules).

For this purpose, data files should be stored in a custom location defined in the configuration file, or in a command-line argument. Sensible defaults should be set depending on the platform/environment.