Update deps, enable cache for ESLint, tweak gitignore. (#438)

* Update devDependencies.

* Enable cache for ESLint.

Also, tweak .gitignore/.eslintignore.

4 files changed, 90 insertions, 88 deletions

diff --git a/.eslintignore b/.eslintignore
index 5799d74..15db951 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -3,5 +3,4 @@
 /coverage/
 /dist/
 /node_modules/
-/src-cov/
 /vendor/
diff --git a/.gitignore b/.gitignore
index 73de662..16e3182 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,20 +1,28 @@
 # Logs
-logs
+logs/
 *.log
 
 # Runtime data
-pids
+pids/
 *.pid
 *.seed
 
-.nyc_output/
-coverage/
-src-cov
-
-node_modules/
+# Local bootstrap repository
 /bootstrap/
-.bundle/
-vendor/
+
+# Cache
+/.cache/
+
+# Coverage
+/.nyc_output/
+/coverage/
+
+# Bundler files and gems
+/.bundle/
+/vendor/
+
+# npm packages
+/node_modules/
 
 # Vim generated files
 *.swp
diff --git a/package-lock.json b/package-lock.json
index b0d2101..420f31f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -112,27 +112,28 @@
       }
     },
     "@sinonjs/commons": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.3.0.tgz",
-      "integrity": "sha512-j4ZwhaHmwsCb4DlDOIWnI5YyKDNMoNThsmwEpfHx6a1EpsGZ9qYLxP++LMlmBRjtGptGHFsGItJ768snllFWpA==",
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.4.0.tgz",
+      "integrity": "sha512-9jHK3YF/8HtJ9wCAbG+j8cD0i0+ATS9A7gXFqS36TblLPNy6rEEc+SB0imo91eCboGaBYGV/MT1/br/J+EE7Tw==",
       "dev": true,
       "requires": {
         "type-detect": "4.0.8"
       }
     },
     "@sinonjs/formatio": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-3.1.0.tgz",
-      "integrity": "sha512-ZAR2bPHOl4Xg6eklUGpsdiIJ4+J1SNag1DHHrG/73Uz/nVwXqjgUtRPLoS+aVyieN9cSbc0E4LsU984tWcDyNg==",
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-3.2.1.tgz",
+      "integrity": "sha512-tsHvOB24rvyvV2+zKMmPkZ7dXX6LSLKZ7aOtXY6Edklp0uRcgGpOsQTTGTcWViFyx4uhWc6GV8QdnALbIbIdeQ==",
       "dev": true,
       "requires": {
-        "@sinonjs/samsam": "^2 || ^3"
+        "@sinonjs/commons": "^1",
+        "@sinonjs/samsam": "^3.1.0"
       }
     },
     "@sinonjs/samsam": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-3.2.0.tgz",
-      "integrity": "sha512-j5F1rScewLtx6pbTK0UAjA3jJj4RYiSKOix53YWv+Jzy/AZ69qHxUpU8fwVLjyKbEEud9QrLpv6Ggs7WqTimYw==",
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-3.3.0.tgz",
+      "integrity": "sha512-beHeJM/RRAaLLsMJhsCvHK31rIqZuobfPLa/80yGH5hnD8PV1hyh9xJBJNFfNmO7yWqm+zomijHsXpI6iTQJfQ==",
       "dev": true,
       "requires": {
         "@sinonjs/commons": "^1.0.2",
@@ -202,9 +203,9 @@
       "dev": true
     },
     "ajv": {
-      "version": "6.9.2",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.9.2.tgz",
-      "integrity": "sha512-4UFy0/LgDo7Oa/+wOAlj44tp9K78u38E5/359eSrqEp1Z5PdVfimCcs7SluXMP755RUQu6d2b4AvF0R1C9RZjg==",
+      "version": "6.10.0",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
+      "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^2.0.1",
@@ -1370,9 +1371,9 @@
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
     },
     "eslint": {
-      "version": "5.14.1",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-5.14.1.tgz",
-      "integrity": "sha512-CyUMbmsjxedx8B0mr79mNOqetvkbij/zrXnFeK2zc3pGRn3/tibjiNAv/3UxFEyfMDjh+ZqTrJrEGBFiGfD5Og==",
+      "version": "5.15.1",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-5.15.1.tgz",
+      "integrity": "sha512-NTcm6vQ+PTgN3UBsALw5BMhgO6i5EpIjQF/Xb5tIh3sk9QhrFafujUOczGz4J24JBlzWclSB9Vmx8d+9Z6bFCg==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
@@ -1381,7 +1382,7 @@
         "cross-spawn": "^6.0.5",
         "debug": "^4.0.1",
         "doctrine": "^3.0.0",
-        "eslint-scope": "^4.0.0",
+        "eslint-scope": "^4.0.2",
         "eslint-utils": "^1.3.1",
         "eslint-visitor-keys": "^1.0.0",
         "espree": "^5.0.1",
@@ -1414,9 +1415,9 @@
       }
     },
     "eslint-scope": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-4.0.0.tgz",
-      "integrity": "sha512-1G6UTDi7Jc1ELFwnR58HV4fK9OQK4S6N985f166xqXxpjU6plxFISJa2Ba9KCQuFa8RCnj/lSFJbHo7UFDBnUA==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-4.0.2.tgz",
+      "integrity": "sha512-5q1+B/ogmHl8+paxtOKx38Z8LtWkVGuNt3+GQNErqwLl6ViNp/gdJGMCjZNxZ8j/VYjDNZ2Fo+eQc1TAVPIzbg==",
       "dev": true,
       "requires": {
         "esrecurse": "^4.1.0",
@@ -1436,9 +1437,9 @@
       "dev": true
     },
     "esm": {
-      "version": "3.2.7",
-      "resolved": "https://registry.npmjs.org/esm/-/esm-3.2.7.tgz",
-      "integrity": "sha512-zsyD5gO8CY9dpK3IrdC4WHtvtHGXEFOpYA4zB+6p+Kygf3vv/6kF3YMEQLOArwKPPNvKt8gjI8UYhQW8bXM/YQ==",
+      "version": "3.2.16",
+      "resolved": "https://registry.npmjs.org/esm/-/esm-3.2.16.tgz",
+      "integrity": "sha512-iACZMQvYFc66Y7QC+vD3oGA/fFsPA/IQwewRJ3K0gbMV52E59pdko02kF2TfVdtp5aHO62PHxL6fxtHJmhm3NQ==",
       "dev": true
     },
     "espree": {
@@ -2066,18 +2067,18 @@
       },
       "dependencies": {
         "ansi-regex": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.0.0.tgz",
-          "integrity": "sha512-iB5Dda8t/UqpPI/IjsejXu5jOGDrzn41wJyljwPH65VCIbk6+1BzFIMJGFwTNrYXT1CrD+B4l19U7awiQ8rk7w==",
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
           "dev": true
         },
         "strip-ansi": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.0.0.tgz",
-          "integrity": "sha512-Uu7gQyZI7J7gn5qLn1Np3G9vcYGTVqB+lFTytnDJv83dd8T22aGH451P3jueT2/QemInJDfxHB5Tde5OzgG1Ow==",
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.1.0.tgz",
+          "integrity": "sha512-TjxrkPONqO2Z8QDCpeE2j6n0M6EwxzyDgzEeGp+FbdvaJAt//ClYi6W5my+3ROlC/hZX2KACUwDfK49Ka5eDvg==",
           "dev": true,
           "requires": {
-            "ansi-regex": "^4.0.0"
+            "ansi-regex": "^4.1.0"
           }
         }
       }
@@ -3864,9 +3865,9 @@
       }
     },
     "pako": {
-      "version": "1.0.8",
-      "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.8.tgz",
-      "integrity": "sha512-6i0HVbUfcKaTv+EG8ZTr75az7GFXcLYk9UyLEg7Notv/Ma+z/UG3TCoz6GiNeOrn1E/e63I0X/Hpw18jHOTUnA==",
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.10.tgz",
+      "integrity": "sha512-0DTvPVU3ed8+HNXOu5Bs+o//Mbdj9VNQMUOe9oKCwh8l0GNwpTDMKCWbRjgtD291AWnkAgkqA/LOnQS8AmS1tw==",
       "dev": true
     },
     "parent-module": {
@@ -4215,9 +4216,9 @@
       }
     },
     "readable-stream": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.1.1.tgz",
-      "integrity": "sha512-DkN66hPyqDhnIQ6Jcsvx9bFjhw214O4poMBcIMgPVpQvNy9a0e0Uhg5SqySyDKAmUlwt8LonTBz1ezOnM8pUdA==",
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.2.0.tgz",
+      "integrity": "sha512-RV20kLjdmpZuTF1INEb9IA3L68Nmi+Ri7ppZqo78wj//Pn62fCoJyV9zalccNzDD/OuJpMG4f+pfMl8+L6QdGw==",
       "requires": {
         "inherits": "^2.0.3",
         "string_decoder": "^1.1.1",
@@ -4752,13 +4753,13 @@
       "dev": true
     },
     "sinon": {
-      "version": "7.2.5",
-      "resolved": "https://registry.npmjs.org/sinon/-/sinon-7.2.5.tgz",
-      "integrity": "sha512-1c2KK6g5NQr9XNYCEcUbeFtBpKZD1FXEw0VX7gNhWUBtkchguT2lNdS7XmS7y64OpQWfSNeeV/f8py3NNcQ63Q==",
+      "version": "7.2.7",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-7.2.7.tgz",
+      "integrity": "sha512-rlrre9F80pIQr3M36gOdoCEWzFAMDgHYD8+tocqOw+Zw9OZ8F84a80Ds69eZfcjnzDqqG88ulFld0oin/6rG/g==",
       "dev": true,
       "requires": {
-        "@sinonjs/commons": "^1.3.0",
-        "@sinonjs/formatio": "^3.1.0",
+        "@sinonjs/commons": "^1.3.1",
+        "@sinonjs/formatio": "^3.2.1",
         "@sinonjs/samsam": "^3.2.0",
         "diff": "^3.5.0",
         "lolex": "^3.1.0",
@@ -4792,9 +4793,9 @@
       "dev": true
     },
     "source-map-support": {
-      "version": "0.5.10",
-      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.10.tgz",
-      "integrity": "sha512-YfQ3tQFTK/yzlGJuX8pTwa4tifQj4QS2Mj7UegOu8jAz59MqIiMGPXxQhVQiIMNzayuUSF/jEuVnfFF5JqybmQ==",
+      "version": "0.5.11",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.11.tgz",
+      "integrity": "sha512-//sajEx/fGL3iw6fltKMdPvy8kL3kJ2O3iuYlRoT3k9Kb4BjOoZ+BZzaNHeuaruSt+Kf3Zk9tnfAQg9/AJqUVQ==",
       "dev": true,
       "requires": {
         "buffer-from": "^1.0.0",
@@ -5062,37 +5063,37 @@
       },
       "dependencies": {
         "ansi-regex": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.0.0.tgz",
-          "integrity": "sha512-iB5Dda8t/UqpPI/IjsejXu5jOGDrzn41wJyljwPH65VCIbk6+1BzFIMJGFwTNrYXT1CrD+B4l19U7awiQ8rk7w==",
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
           "dev": true
         },
         "string-width": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.0.0.tgz",
-          "integrity": "sha512-rr8CUxBbvOZDUvc5lNIJ+OC1nPVpz+Siw9VBtUjB9b6jZehZLFt0JMCZzShFHIsI8cbhm0EsNIfWJMFV3cu3Ew==",
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
           "dev": true,
           "requires": {
             "emoji-regex": "^7.0.1",
             "is-fullwidth-code-point": "^2.0.0",
-            "strip-ansi": "^5.0.0"
+            "strip-ansi": "^5.1.0"
           }
         },
         "strip-ansi": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.0.0.tgz",
-          "integrity": "sha512-Uu7gQyZI7J7gn5qLn1Np3G9vcYGTVqB+lFTytnDJv83dd8T22aGH451P3jueT2/QemInJDfxHB5Tde5OzgG1Ow==",
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.1.0.tgz",
+          "integrity": "sha512-TjxrkPONqO2Z8QDCpeE2j6n0M6EwxzyDgzEeGp+FbdvaJAt//ClYi6W5my+3ROlC/hZX2KACUwDfK49Ka5eDvg==",
           "dev": true,
           "requires": {
-            "ansi-regex": "^4.0.0"
+            "ansi-regex": "^4.1.0"
           }
         }
       }
     },
     "tap": {
-      "version": "12.5.3",
-      "resolved": "https://registry.npmjs.org/tap/-/tap-12.5.3.tgz",
-      "integrity": "sha512-st6Tkj4iL2dqucFngl82IK+mUrY/FQETNCWMN2Kfred38vznzjDTUXrpivE1RegzwwyXetJLCHgdycpSVTiMsw==",
+      "version": "12.6.0",
+      "resolved": "https://registry.npmjs.org/tap/-/tap-12.6.0.tgz",
+      "integrity": "sha512-HsU8Djx7WhkP8SZbtdtb1P/g74QdMYgLtge9/MiNZ2uKXa1KV36nHgWIFI0BlrhnzcS9n3WfqmLY2tIBTjl+ew==",
       "dev": true,
       "requires": {
         "bind-obj-methods": "^2.0.0",
@@ -5102,7 +5103,7 @@
         "color-support": "^1.1.0",
         "coveralls": "^3.0.2",
         "domain-browser": "^1.2.0",
-        "esm": "^3.2.3",
+        "esm": "^3.2.5",
         "foreground-child": "^1.3.3",
         "fs-exists-cached": "^1.0.0",
         "function-loop": "^1.0.1",
@@ -5120,7 +5121,7 @@
         "signal-exit": "^3.0.0",
         "source-map-support": "^0.5.10",
         "stack-utils": "^1.0.2",
-        "tap-mocha-reporter": "^3.0.7",
+        "tap-mocha-reporter": "^3.0.9",
         "tap-parser": "^7.0.0",
         "tmatch": "^4.0.0",
         "trivial-deferred": "^1.0.1",
@@ -5208,22 +5209,16 @@
       }
     },
     "terser": {
-      "version": "3.16.1",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-3.16.1.tgz",
-      "integrity": "sha512-JDJjgleBROeek2iBcSNzOHLKsB/MdDf+E/BOAJ0Tk9r7p9/fVobfv7LMJ/g/k3v9SXdmjZnIlFd5nfn/Rt0Xow==",
+      "version": "3.17.0",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-3.17.0.tgz",
+      "integrity": "sha512-/FQzzPJmCpjAH9Xvk2paiWrFq+5M6aVOf+2KRbwhByISDX/EujxsK+BAvrhb6H+2rtrLCHK9N01wO014vrIwVQ==",
       "dev": true,
       "requires": {
-        "commander": "~2.17.1",
+        "commander": "^2.19.0",
         "source-map": "~0.6.1",
-        "source-map-support": "~0.5.9"
+        "source-map-support": "~0.5.10"
       },
       "dependencies": {
-        "commander": {
-          "version": "2.17.1",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
-          "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==",
-          "dev": true
-        },
         "source-map": {
           "version": "0.6.1",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -5345,9 +5340,9 @@
       "dev": true
     },
     "ts-node": {
-      "version": "8.0.2",
-      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-8.0.2.tgz",
-      "integrity": "sha512-MosTrinKmaAcWgO8tqMjMJB22h+sp3Rd1i4fdoWY4mhBDekOwIAKI/bzmRi7IcbCmjquccYg2gcF6NBkLgr0Tw==",
+      "version": "8.0.3",
+      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-8.0.3.tgz",
+      "integrity": "sha512-2qayBA4vdtVRuDo11DEFSsD/SFsBXQBRZZhbRGSIkmYmVkWjULn/GGMdG10KVqkaGndljfaTD8dKjWgcejO8YA==",
       "dev": true,
       "requires": {
         "arg": "^4.1.0",
diff --git a/package.json b/package.json
index 74edb63..fb0a15c 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "build": "npm run browserify && npm run minify",
     "dist": "npm run build",
     "coveralls": "nyc report --reporter=text-lcov | coveralls",
-    "eslint": "eslint .",
+    "eslint": "eslint --cache-location .cache/.eslintcache .",
     "lint": "npm run eslint",
     "minify": "terser --compress typeofs=false --mangle --comments \"/^!/\" --source-map \"includeSources,url=bootlint.min.js.map\" --output dist/browser/bootlint.min.js dist/browser/bootlint.js",
     "nodeunit": "nodeunit test",
@@ -44,15 +44,15 @@
     "async": "^2.6.2",
     "browserify": "^16.2.3",
     "coveralls": "^3.0.3",
-    "eslint": "^5.14.1",
+    "eslint": "^5.15.1",
     "jquery": "^3.3.1",
     "node-qunit-phantomjs": "^2.0.1",
     "nodeunit": "^0.11.3",
     "nyc": "^13.3.0",
     "qunit": "^2.9.2",
     "rewire": "^4.0.1",
-    "sinon": "^7.2.5",
-    "terser": "^3.16.1"
+    "sinon": "^7.2.7",
+    "terser": "^3.17.0"
   },
   "main": "./src/bootlint.js",
   "bin": {