Update dependencies.

package.json

@@ -13,7 +13,7 @@
   "license": "BSD-3-Clause",
   "author": {
     "name": "Mike Bostock",
-    "url": "http://bost.ocks.org/mike"
+    "url": "https://bost.ocks.org/mike"
   },
   "main": "build/d3-geo.js",
   "module": "index",
@@ -23,9 +23,9 @@
     "url": "https://github.com/d3/d3-geo.git"
   },
   "scripts": {
-    "pretest": "rm -rf build && mkdir build && rollup --banner \"$(preamble)\" -f umd -g d3-array:d3 -n d3 -o build/d3-geo.js -- index.js",
+    "pretest": "rm -rf build && mkdir build && rollup -c --banner \"$(preamble)\"",
     "test": "tape 'test/**/*-test.js' && mkdir -p test/output && eslint index.js src",
-    "prepublish": "npm run test && test/compare-images && uglifyjs --preamble \"$(preamble)\" build/d3-geo.js -c negate_iife=false -m -o build/d3-geo.min.js",
+    "prepublishOnly": "npm run test && test/compare-images && uglifyjs -b beautify=false,preamble=\"'$(preamble)'\" build/d3-geo.js -c -m -o build/d3-geo.min.js",
     "postpublish": "git push && git push --tags && cd ../d3.github.com && git pull && cp ../d3-geo/build/d3-geo.js d3-geo.v1.js && cp ../d3-geo/build/d3-geo.min.js d3-geo.v1.min.js && git add d3-geo.v1.js d3-geo.v1.min.js && git commit -m \"d3-geo ${npm_package_version}\" && git push && cd - && zip -j build/d3-geo.zip -- LICENSE README.md build/d3-geo.js build/d3-geo.min.js"
   },
   "dependencies": {
@@ -34,11 +34,11 @@
   "devDependencies": {
     "canvas": "1",
     "d3-format": "1",
-    "eslint": "3",
+    "eslint": "4",
     "package-preamble": "0.1",
-    "rollup": "0.41",
+    "rollup": "0.49",
     "tape": "4",
     "topojson-client": "3",
-    "uglify-js": "^2.8.11"
+    "uglify-js": "3"
   }
 }

rollup.config.js

@@ -0,0 +1,15 @@
+export default {
+  input: "index",
+  external: [
+    "d3-array"
+  ],
+  output: {
+    extend: true,
+    file: "build/d3-geo.js",
+    format: "umd",
+    globals: {
+      "d3-array": "d3"
+    },
+    name: "d3"
+  }
+};