**UNTESTED**

A brand new profile is setup from this skeleton once iceweasel is started
after boot. Got rid of the last binary sqlite file (namely places.sqlite)
in our source, and of various hard-to-understand autogenerated stuff.

Moved the GNOME localization script (Nautilus secure delete, Scroogle search
engine) to a live-bottom script: the user's iceweasel profile has not been
created yet when GNOME starts, so we could not install the localize search
engine into her profile at this point => better install it globally earlier in
the boot sequence.