UI now displays name of current street location
Added teleport command and started map window

Users can use the new command 'setlocation<tsid>' to teleport to any
location in Ur. Only works if there is no space between the command and
the value, this is a bug. Works whether 'L' or 'G' is first letter, so
users may directly copy TSIDs from Glitch website.

Started work on GPS map window. Map icon button added to UI, opens map
window.
Merge branch 'dev' into multiplayer
merged in courtney's current location changes because it looks awesome