[Tagging] default value for "oneway"

[Stephan Knauss]

Xavier Noria writes:

> In the European cities and towns I know the majority of streets are
> one-way.

In not a single EU city I know of there is something close to "a majority  
of streets" being one-way. Even more. In most of the villages the roads are  
not one-way. Based on this it's a good rationale to assume a street is non  
one-way by default.

This also applies to the cities in Asia i know of.

Stephan