Merge pull request dwyl#27 from cristianofromagio/fix-istanbul-install-error

Update deprecated dependencies, fix issue dwyl#26

Author: nelsonic

package.json

@@ -11,21 +11,21 @@
   "author": "@dwyl & friends!",
   "devDependencies": {
     "decache": "^4.5.1",
-    "istanbul": "^0.4.5",
     "jsdom": "^16.0.1",
     "jsdom-global": "^3.0.2",
     "live-server": "^1.2.1",
+    "nyc": "^15.0.1",
     "pre-commit": "^1.2.2",
-    "tap-spec": "^5.0.0",
+    "tap-nyc": "^1.0.3",
     "tape": "^4.13.0"
   },
   "scripts": {
-    "check-coverage": "istanbul check-coverage --statements 100 --functions 100 --lines 100 --branches 100",
+    "check-coverage": "nyc check-coverage --statements 100 --functions 100 --lines 100 --branches 100",
     "postinstall": "npm test",
     "retest": "PORT=8000 node_modules/.bin/nodemon ./test/*.js",
     "start": "node lib/server.js",
     "dev": "live-server",
-    "test": "istanbul cover tape ./test/*.test.js | tap-spec"
+    "test": "nyc tape ./test/*.test.js | tap-nyc"
   },
   "keywords": [
     "Todo List",