Bump idtoken-verifier and run npm audit fix (#1179)

* Bump idtoken-verifier

* Fix other vulnerabilities

* Update idtoken-verifier

Author: frederikprijck

package-lock.json

@@ -53,7 +53,7 @@
   },
   "dependencies": {
     "base64-js": "^1.3.0",
-    "idtoken-verifier": "^2.0.3",
+    "idtoken-verifier": "^2.1.1",
     "js-cookie": "^2.2.0",
     "qs": "^6.7.0",
     "superagent": "^5.3.1",
@@ -77,7 +77,7 @@
     "expect.js": "^0.3.1",
     "husky": "^3.0.0",
     "istanbul": "^0.4.5",
-    "jsdoc": "3.6.3",
+    "jsdoc": "^3.6.7",
     "jsdoc-to-markdown": "5.0.0",
     "jsdom": "^15.1.1",
     "jsdom-global": "^3.0.2",
@@ -94,7 +94,7 @@
     "rollup": "^1.17.0",
     "rollup-plugin-commonjs": "^10.0.1",
     "rollup-plugin-json": "^4.0.0",
-    "rollup-plugin-license": "^2.2.0",
+    "rollup-plugin-license": "^2.3.0",
     "rollup-plugin-livereload": "^1.0.1",
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-replace": "^2.2.0",