[Tagging] Usefulness of bicycle=dismount on ways

[Martin Koppenhoefer]

> Am 10/ott/2013 um 16:28 schrieb fly <lowflight66 at googlemail.com>:
>
> The convention did change a bit by time and now ":" is more common than
> "_" but at the end it does not really matter.


this as a different separator: the colon is for hierarchical
structures (a:b b is a subtag of a) and the underscore is a
substitution of a space in formalized values (or in keys), e.g.
natural=bare_rock

cheers,
Martin