Changes

And this one was an attempt to get version 1.27.1 to recognise mobile phones and give directions to lineside features. Various problems, including not being able to get MobileFrontend working, uncertainty over whether svrwiki would be able to ask users for their location without paying for an SSL certificate, and poor phone reception in many areas, means I am now starting to look at creating a From The Window app, but that's a whole 'nother project.