Replace basemap with cartopy

conda-recipe/meta.yaml

@@ -6,7 +6,7 @@ source:
   path: ../
 
 build:
-  number: 0
+  number: 1
   noarch: python
   entry_points:
     - nexus = nexus.nexus:main
@@ -22,8 +22,9 @@ requirements:
     - python >=3.6
     - obspy
     # needs basemap or cartopy. Cartopy has heavy deps like hdf4 and 5, so basemap for now.
-    #- cartopy
-    - basemap
+    # err, basemap is getting more depricated, try cartopy
+    - cartopy
+    #- basemap
     # matplotlib 3.3.0  had an error about matplotlib dedent, so 3.2
     # TODO: remove this pin, fix is merged, next matplotlib (3.3.1) should be ok
     #- matplotlib-base =3.2