[geos-devel] Namespaces and headers split

[strk at refractions.net]

I've completed the namespaces and headers split step.

GEOS namespaces now reflect JTS packages, and
all classes are named after JTS classes/interfaces.
There are now duplicated names, but in different
namespaces (as it is for JTS).

Most client apps will just use the 'geos::geom',
'geos::io' and 'geos::util' namespaces and also
not all classes from them. This opens up a chance
to reduce exposed API by only installed "maintained"
interfaces. We attempted at doing this from the start
by providing a geos.h header, including a minimal
set of internal headers. We could now reduce that
minimal set. What do you think ?

Note that the original "catch-all" headers have
been currently retained, as a convenience to allow
existing application to build w/out much modification.
As an example, qgis still builds w/out modifications
against GEOS-HEAD.

--strk;

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