Most of the tools referenced in "Running Tracker" don't exist any more.

We shouldn't need to document how to set inotify limits as distros
should be setting inotify limits high enough for Tracker to work out of
the box.

The man pages referred in the "Further help" section are nice, but
ideally they'd be linked from the main documentation at
https://wiki.gnome.org/Projects/Tracker (see
#107).