[ELGIS] ELGIS 6 Stable updated

[Mathieu Baudier]

> Tested my setup with gdal, postgis, php-mapserver, pgrouting with both
> clean install and update, all works fine.

Thanks a lot, such feedback is invaluable.

> Quick question, pgRouting 2 is not backward compatible with pgRouting
> 1, will the pgRouting 2 package have the name of "pgrouting2" so no
> existing applications will break ?

Yes, definitely, this is the approach for having packages of two
branches of a given software. (e.g. mapserver/mapserver6 by ELGIS5
which became mapserver5/mapserver by ELGIS6)