[GRASS5] Directed Graph Lib Headers (dglib)

[Glynn Clements]

Radim Blazek wrote:

> This applies to all header files. We decided to move all GRASS
> header files to include/grass so that they can be installed on system
> (e.g. in /usr/local/include)  without conflicts.
> Modules and especially independent applications using GRASS libraries
> (GDAL/OGR, QGIS) should include grass/xxx.h instead of xxx.h.

I've committed a change to use <grass/xxx.h> throughout.

-- 
Glynn Clements <glynn at gclements.plus.com>