Fix typo (toît → toit)
Fix 360° checkbox behaviour

Now, this checkbox is checked if and only if all orientation checkboxes
are checked.  Note that this is purely cosmetic.
Fix typo
Ask the reason why somebody wants to connect to the network

Note that there is no database migration...
Draw orientations on the public map

It's not very pretty for now, but it works
Much prettier drawing of orientations on the map

Note that we compute the angles on the server, in Python.
Merge branch 'display_orientations', including 'small_fixes', thanks zorun :)
Merge branch 'connect_reason'