update deps

Author: Rich-Harris

package.json

@@ -11,16 +11,16 @@
 	  "types"
   ],
   "devDependencies": {
-    "@types/mocha": "^2.2.44",
-    "@types/node": "^8.0.53",
+    "@types/mocha": "^5.2.5",
+    "@types/node": "^10.12.0",
     "glob": "^7.1.2",
-    "mocha": "^4.0.1",
-    "rollup": "^0.52.0",
-    "rollup-plugin-typescript": "^0.8.1",
+    "mocha": "^5.2.0",
+    "rollup": "^0.66.6",
+    "rollup-plugin-typescript": "^1.0.0",
     "rollup-plugin-virtual": "^1.0.1",
     "sander": "^0.6.0",
-    "ts-node": "^3.3.0",
-    "typescript": "^2.6.2"
+    "ts-node": "^7.0.1",
+    "typescript": "^3.1.3"
   },
   "scripts": {
     "build-declarations": "tsc -d && node scripts/move-type-declarations.js",