Address security warnings, upgrade dependencies, use npm-run-all. (#283)

* Upgrade packages to address security warnings flagged by yarn audit.

* Use text instead of text-summary for nyc reporting.

* Use npm-run-all as task runner.

Author: parkerziegler

.nycrc

@@ -2,7 +2,7 @@
   "reporter": [
     "html",
     "lcov",
-    "text-summary"
+    "text"
   ],
   "report-dir": "./.coverage"
 }

package.json

@@ -12,8 +12,8 @@
     "test": "mocha 'test/**/*.spec.js'",
     "test-cov": "nyc mocha 'test/**/*.spec.js'",
     "lint": "eslint .",
-    "check": "npm run format-check && npm run lint && npm run test && npm run check-ts",
-    "check-ci": "npm run format-check && npm run lint && npm run test-cov && npm run check-ts",
+    "check": "run-s format-check lint test check-ts",
+    "check-ci": "run-s format-check lint test-cov check-ts",
     "check-ts": "tsc index.d.ts --noEmit",
     "dev": "cross-env EXAMPLE=duplicates-esm node bin/webpack-dashboard.js -- webpack-cli --config examples/config/webpack.config.js --watch",
     "format": "prettier --write './{bin,examples,plugin,test,utils}/**/*.js'",
@@ -50,18 +50,19 @@
     "socket.io-client": "^2.1.1"
   },
   "devDependencies": {
-    "babel-eslint": "^8.2.3",
+    "babel-eslint": "^10.0.1",
     "chai": "^4.1.2",
     "cross-env": "^5.2.0",
-    "eslint": "^4.19.1",
+    "eslint": "^5.16.0",
     "eslint-config-formidable": "^4.0.0",
     "eslint-config-prettier": "^4.0.0",
     "eslint-plugin-filenames": "^1.1.0",
     "eslint-plugin-import": "^2.12.0",
     "eslint-plugin-prettier": "^3.0.1",
     "eslint-plugin-promise": "^3.7.0",
     "mocha": "^5.2.0",
-    "nyc": "^13.3.0",
+    "npm-run-all": "^4.1.5",
+    "nyc": "^14.0.0",
     "prettier": "^1.16.4",
     "sinon": "^5.0.7",
     "sinon-chai": "^3.0.0",