chore: Upgrade dependencies (#468)

Perform a (full) upgrade of dependencies.

Author: RomainMuller

package-lock.json

@@ -2,11 +2,12 @@
     "private": true,
     "license": "Apache-2.0",
     "devDependencies": {
-        "lerna": "^3.13.1",
+        "@types/node": "^8.10.45",
+        "lerna": "^3.13.3",
         "nodeunit": "^0.11.3",
-        "nyc": "^13.3.0",
-        "tslint": "^5.15.0",
-        "typescript": "^3.4.2"
+        "nyc": "^14.0.0",
+        "tslint": "^5.16.0",
+        "typescript": "^3.4.3"
     },
     "repository": {
         "type": "git",