Merge pull request #1019 from CartoDB/create-carto-package-json

create carto-package.json file

carto-package.json

@@ -0,0 +1,16 @@
+{
+    "name": "carto_windshaft",
+    "current_version": {
+        "requires": {
+            "node": ">=6.9.2 <10.0",
+            "yarn": ">=0.27.5 <1.0.0"
+        },
+        "works_with": {
+            "redis": ">=3.0.0",
+            "postgresql": ">=9.5",
+            "postgis": ">=2.2",
+            "mapnik": ">=3.0.15",
+            "carto_postgresql_ext": ">=0.19"
+        }
+    }
+}