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According to GNOME and Microsoft documentation guidelines, data is written on a 'hard disk' (or 'disk').
While 'drive' is the generic term for the physical object as in 'CD drive' (without hyphen).

Conflicts:
	wiki/src/doc/encryption_and_privacy/your_data_wont_be_saved_unless_explicitly_asked.mdwn

This could as well fit on tails-project@boum.org

Also fix the incorrect date for the February low-hanging fruits
session.

Too many new contributors try to build from master.