Correct 'lon' to 'long'
Open311 Hide system fields from FMS

Bromley/Warwickshire send metadata in their services/FOO.xml
advising that you can pass, e.g. attributes[easting].

FMS by default shows all of these to the user to fill in, however
we don't *want* the user to supply these, rather they are added
by the cobrand.

Bromley had an exception for this (keyed by $body->areas->id).
We write this more generally for Warwickshire too, keying instead
by $body->name (as this is far less likely to be overridden for
installs using global or custom Mapit's)