updating to d3-sankey 0.7.1

Author: antoinerg

package-lock.json

@@ -56,9 +56,6 @@
     ]
   },
   "dependencies": {
-    "d3-array": "1",
-    "d3-collection": "1",
-    "d3-interpolate": "1",
     "3d-view": "^2.0.0",
     "alpha-shape": "^1.0.0",
     "array-range": "^1.0.1",
@@ -67,7 +64,11 @@
     "convex-hull": "^1.0.3",
     "country-regex": "^1.1.0",
     "d3": "^3.5.12",
+    "d3-array": "1",
+    "d3-collection": "1",
     "d3-force": "^1.0.6",
+    "d3-interpolate": "1",
+    "d3-sankey": "^0.7.1",
     "delaunay-triangulate": "^1.1.6",
     "es6-promise": "^3.0.2",
     "fast-isnumeric": "^1.1.2",