- npm: Update devDeps (mocha, typescript, eslint)

- Add coverage to ignore and lint all by default (adding to ignore allows discovery by IDEs)

Author: brettz9

.eslintignore

@@ -1,2 +1,3 @@
 /node_modules
 !.eslintrc.*
+coverage

package.json

@@ -16,19 +16,19 @@
   "devDependencies": {
     "@mysticatea/eslint-plugin": "^13.0.0",
     "codecov": "^3.6.5",
-    "eslint": "~6.6.0",
-    "mocha": "^7.1.1",
+    "eslint": "^7.0.0",
+    "mocha": "^7.1.2",
     "npm-run-all": "^4.1.5",
     "nyc": "^15.0.1",
     "opener": "^1.5.1",
     "rimraf": "^3.0.2",
-    "typescript": "^3.8.3"
+    "typescript": "^3.9.2"
   },
   "scripts": {
     "clean": "rimraf .nyc_output coverage",
     "coverage": "opener coverage/lcov-report/index.html",
     "codecov": "codecov --disable=gcov -t $CODECOV_TOKEN",
-    "lint": "eslint lib scripts tests",
+    "lint": "eslint .",
     "test": "npm run -s lint && nyc mocha \"tests/lib/**/*.js\" --reporter dot",
     "update": "node scripts/generate-configs && node scripts/generate-rules",
     "preversion": "run-s clean update test",