Warning resolution

Resolved the 3 warnings in the helpers.
Little refactoring

Little refactoring in some filenames.
Pryv files by drag and drop on the Dock

You can pryv files and folder by drag and droping it on the Dock tilde
of the application.
Pryv files by drag and drop on status menu icon

It is now possible to pryv files and folder by drag and droping files
on the the status menu bar icon.