upgrade futher

.prettierignore

@@ -1,2 +1,3 @@
 /browser.js
 /test/imagediff.js
+.nyc_output

package.json

@@ -51,25 +51,24 @@
   },
   "repository": {
     "type": "git",
-    "url": "git://github.com/lukeapage/pngjs2.git"
+    "url": "git://github.com/lukeapage/pngjs.git"
   },
   "license": "MIT",
   "bugs": {
-    "url": "https://github.com/lukeapage/pngjs2/issues"
+    "url": "https://github.com/lukeapage/pngjs/issues"
   },
   "devDependencies": {
     "browserify": "16.5.1",
     "buffer-equal": "1.0.0",
-    "connect": "3.4.0",
+    "connect": "3.7.0",
     "coveralls": "3.0.11",
     "eslint": "6.8.0",
     "eslint-config-prettier": "6.10.1",
-    "istanbul": "0.4.4",
     "nyc": "15.0.1",
     "prettier": "2.0.4",
     "puppeteer": "1.20.0",
-    "serve-static": "1.10.0",
+    "serve-static": "1.14.1",
     "tap-dot": "2.0.0",
-    "tape": "4.0.2"
+    "tape": "4.13.2"
   }
 }