r.info: Rename location to project in outputs (#3134)

- Translatable plain text output now generates "Project" instead of "Location".
- Extended shell-style output now generates "project=" in addtion to "location=".
- Shell example in documentation now shows project only.
- Words "data base location and mapset" in documentation are now replaces by slightly experimental "project, mapset, project parent directory (database directory)". The order is what works best for the sentence. The print order is mapset, project, directory.

raster/r.info/main.c

@@ -159,7 +159,7 @@ int main(int argc, char **argv)
                      hist_ok ? Rast_get_history(&hist, HIST_MAPID) : "??");
         compose_line(out, "Mapset:   %-29.29s  Login of Creator: %s", mapset,
                      hist_ok ? Rast_get_history(&hist, HIST_CREATOR) : "??");
-        compose_line(out, "Location: %s", G_location());
+        compose_line(out, "Project:  %s", G_location());
         compose_line(out, "DataBase: %s", G_gisdbase());
         compose_line(out, "Title:    %s", title);
 
@@ -565,6 +565,7 @@ int main(int argc, char **argv)
                     hist_ok ? Rast_get_history(&hist, HIST_MAPTYPE) : "??");
             fprintf(out, "mapset=%s\n", mapset);
             fprintf(out, "location=%s\n", G_location());
+            fprintf(out, "project=%s\n", G_location());
             fprintf(out, "database=%s\n", G_gisdbase());
             fprintf(out, "date=\"%s\"\n",
                     hist_ok ? Rast_get_history(&hist, HIST_MAPID) : "??");

raster/r.info/r.info.html

@@ -4,7 +4,8 @@ <h2>DESCRIPTION</h2>
 user-specified raster map layer.  This map layer must exist
 in the user's current mapset search path.  Information
 about the map's boundaries, resolution, projection, data
-type, category number, data base location and mapset,
+type, category number, project, mapset,
+project parent directory (database directory),
 the timestamp and history are put into a table and written to standard
 output. The types of information listed can also be found
 in the <i>cats</i>, <i>cellhd</i>, and <i>hist</i>
@@ -42,7 +43,7 @@ <h2>EXAMPLES</h2>
  +----------------------------------------------------------------------------+
  | Map:      slope                          Date: Tue Nov  7 01:11:23 2006    |
  | Mapset:   PERMANENT                      Login of Creator: helena          |
- | Location: nc_spm_08_grass7                                                 |
+ | Project:  nc_spm_08_grass7                                                 |
  | DataBase: /grassdata                                                       |
  | Title:    South-West Wake county: slope in degrees ( slope_ned10m )        |
  | Timestamp: none                                                            |
@@ -108,7 +109,7 @@ <h2>EXAMPLES</h2>
 r.info -e slope
 map=slope
 mapset=PERMANENT
-location=nc_spm_08_grass7
+project=nc_spm_08_grass7
 database=/grassdata
 date="Tue Nov  7 01:11:23 2006"
 creator="helena"