So to start with I’d like to say a big thanks to all those invaluable contributions which are keeping  as up to date as is possible as the routes change.

I have a day job (sort of) and so I’d like to make sure I don’t miss any of the corrections and updates as they come in, even if I cant get round to them straight away – or they are low-impact enough that I can scoop them up into a single update.

So can you put comments and corrections, if you remember, under this page in the comments below – that way I hopefully won’t miss any.