[GRASS5] 5.7: new GUI guided auto-creation of locations

[Markus Neteler]

Hi again,

Andrea Antonello and me have enhanced the GUI startup
of GRASS 5.7. Now a new button is available to
create a location by just entering the appropriate
EPSG code. EPSG (European Petroleum Survey Group, www.epsg.org)
is providing a database of thousands of projections,
these codes are also used in PROJ4.
The new GUI enhancement provides another button to
list the EPSG codes file from PROJ4 for projection
selection.

After entering into the new location, the boundary coordinates
have to be adjusted or 'r.in.gdal -e' has to be used to
update the DEFAULT_WIND file.

Find in GRASS 5.7 CVS or in the weekly generated Linux
binary snapshot.

Cheers

 Markus Neteler
 Andrea Antonello

PS: Note for Italian users: The entries in the PROJ4 version
    of epsg codes is wrong. Both fuso est and fuso ovest have
    different values, no idea why this doesn't get fixed:
    http://bugzilla.remotesensing.org/show_bug.cgi?id=510
    (maybe you add yourself to CC to raise the interest)
    Related:
    http://bugzilla.remotesensing.org/show_bug.cgi?id=367