[consulting] Module to view/edit module weights

[Khalid B]

(Cross posting to development)

There was criticism about weights in the past (I think it was Ber?)

However, I think the lack of an interface to manipulate the underlying data
structure was the main objection to this.

Remember that a mechanism similar to weights is used in UNIX/Linux
init scripts (each daemon is given a 3 digit number and they are started
in order).

Now that we have an interface that can manipulate the weights, perhaps
the main criticism is moot.

This is similar to update-rc.d in Debian/Ubuntu.

But perhaps we will move to a before/after scheme as hinted to (Adrian?
Vlado?)