Update from proj.4 to proj (#55)

general/g.version/g.version.html

@@ -61,8 +61,8 @@ revision=d4879d401
 build_date=2019-08-04
 build_platform=x86_64-pc-linux-gnu
 build_off_t_size=8
-libgis_revision=00000
-libgis_date="?"
+libgis_revision=060163d17
+libgis_date="2017-04-04 09:43:02 +0200 (Tue, 04 Apr 2017) "
 proj4=5.2.0
 gdal=2.3.2
 geos=3.7.1