Standardize dependencies. d3/d3#3337

Author: mbostock

package.json

@@ -34,12 +34,12 @@
     "postpublish": "git push && git push --tags && cd ../d3.github.com && git pull && cp ../${npm_package_name}/dist/${npm_package_name}.js ${npm_package_name}.v${npm_package_version%%.*}.js && cp ../${npm_package_name}/dist/${npm_package_name}.min.js ${npm_package_name}.v${npm_package_version%%.*}.min.js && git add ${npm_package_name}.v${npm_package_version%%.*}.js ${npm_package_name}.v${npm_package_version%%.*}.min.js && git commit -m \"${npm_package_name} ${npm_package_version}\" && git push && cd - && zip -j dist/${npm_package_name}.zip -- LICENSE README.md dist/${npm_package_name}.js dist/${npm_package_name}.min.js"
   },
   "devDependencies": {
-    "d3-scale": "2",
+    "d3-scale": "2 - 3",
     "d3-selection": "^1.1.0",
-    "eslint": "5",
-    "jsdom": "12",
-    "rollup": "0.64",
-    "rollup-plugin-terser": "1",
+    "eslint": "6",
+    "jsdom": "15",
+    "rollup": "1",
+    "rollup-plugin-terser": "5",
     "tape": "4"
   }
 }