Apply common project tweaks (round 2)

CONTRIBUTORS.md

@@ -4,8 +4,8 @@
 | :------------------------- | :----------------------------------------------------- | :----------------------------------------------------------------------- |
 | **Lars-Magnus Skog**       | [**@ralphtheninja**](https://github.com/ralphtheninja) | [**@[email protected]**](https://social.weho.st/@ralph)               |
 | **Rod Vagg**               | [**@rvagg**](https://github.com/rvagg)                 | [**@rvagg@twitter**](https://twitter.com/rvagg)                          |
-| **Vincent Weevers**        | [**@vweevers**](https://github.com/vweevers)           | [**@vweevers@twitter**](https://twitter.com/vweevers)                    |
 | **David Björklund**        | [**@kesla**](https://github.com/kesla)                 | [**@david_bjorklund@twitter**](https://twitter.com/david_bjorklund)      |
+| **Vincent Weevers**        | [**@vweevers**](https://github.com/vweevers)           | [**@vweevers@twitter**](https://twitter.com/vweevers)                    |
 | **Julian Gruber**          | [**@juliangruber**](https://github.com/juliangruber)   | [**@juliangruber@twitter**](https://twitter.com/juliangruber)            |
 | **Yichao 'Peak' Ji**       | [**@peakji**](https://github.com/peakji)               |                                                                          |
 | **Mathias Buus**           | [**@mafintosh**](https://github.com/mafintosh)         | [**@mafintosh@twitter**](https://twitter.com/mafintosh)                  |

README.md

@@ -1,14 +1,15 @@
 # leveldown
 
-[![level badge][level-badge]](https://github.com/level/awesome)
-[![npm](https://img.shields.io/npm/v/leveldown.svg)](https://www.npmjs.com/package/leveldown)
-![Node version](https://img.shields.io/node/v/leveldown.svg)
-[![Travis](https://img.shields.io/travis/Level/leveldown.svg?label=travis)](http://travis-ci.org/Level/leveldown)
-[![AppVeyor](https://img.shields.io/appveyor/ci/Level/leveldown.svg?label=appveyor)](https://ci.appveyor.com/project/Level/leveldown)
-[![dependencies](https://david-dm.org/Level/leveldown.svg)](https://david-dm.org/level/leveldown)
-[![npm](https://img.shields.io/npm/dm/leveldown.svg)](https://www.npmjs.com/package/leveldown)
+[![level badge][level-badge]](https://github.com/Level/awesome)
+[![npm](https://img.shields.io/npm/v/leveldown.svg?label=&logo=npm)](https://www.npmjs.com/package/leveldown)
+[![Node version](https://img.shields.io/node/v/leveldown.svg)](https://www.npmjs.com/package/leveldown)
+[![Travis](https://img.shields.io/travis/Level/leveldown.svg?logo=travis&label=)](https://travis-ci.org/Level/leveldown)
+[![AppVeyor](https://img.shields.io/appveyor/ci/Level/leveldown.svg?logo=appveyor&label=)](https://ci.appveyor.com/project/Level/leveldown)
+[![npm](https://img.shields.io/npm/dm/leveldown.svg?label=dl)](https://www.npmjs.com/package/leveldown)
 [![Coverage Status](https://coveralls.io/repos/github/Level/leveldown/badge.svg)](https://coveralls.io/github/Level/leveldown)
 [![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
+[![Backers on Open Collective](https://opencollective.com/level/backers/badge.svg?color=orange)](#backers)
+[![Sponsors on Open Collective](https://opencollective.com/level/sponsors/badge.svg?color=orange)](#sponsors)
 
 * [Introduction](#introduction)
 * [Supported Platforms](#supported-platforms)
@@ -23,7 +24,7 @@
 
 ## Introduction
 
-This module was originally part of [`levelup`](https://github.com/level/levelup) but was later extracted and now serves as a stand-alone binding for LevelDB.
+This module was originally part of [`levelup`](https://github.com/Level/levelup) but was later extracted and now serves as a stand-alone binding for LevelDB.
 
 It is **strongly recommended** that you use `levelup` in preference to `leveldown` unless you have measurable performance reasons to do so. `levelup` is optimised for usability and safety. Although we are working to improve the safety of the `leveldown` interface it is still easy to crash your Node process if you don't do things in just the right way.
 
@@ -169,7 +170,7 @@ Perform multiple _put_ and/or _del_ operations in bulk. The `operations` argumen
 
 Each operation is contained in an object having the following properties: `type`, `key`, `value`, where the `type` is either `'put'` or `'del'`. In the case of `'del'` the `value` property is ignored.
 
-Any entries where the `key` or `value` (in the case of `'put'`) is `null` or `undefined` will cause an error to be returned on the `callback`. Any entries where the `type` is `'put'` that have a `value` of `[]`, `''` or `Buffer.alloc(0)` will be stored as a zero-length character array and therefore be fetched during reads as either `''` or `Buffer.alloc(0)` depending on how they are requested. See [`levelup`](https://github.com/level/levelup#batch) for full documentation on how this works in practice.
+Any entries where the `key` or `value` (in the case of `'put'`) is `null` or `undefined` will cause an error to be returned on the `callback`. Any entries where the `type` is `'put'` that have a `value` of `[]`, `''` or `Buffer.alloc(0)` will be stored as a zero-length character array and therefore be fetched during reads as either `''` or `Buffer.alloc(0)` depending on how they are requested. See [`levelup`](https://github.com/Level/levelup#batch) for full documentation on how this works in practice.
 
 The optional `options` argument may contain:
 
@@ -374,6 +375,18 @@ $ git submodule update --init --recursive
 7. Add changelog to the GitHub release
 8. Finally: `npm publish`
 
+## Donate
+
+To sustain [`Level`](https://github.com/Level) and its activities, become a backer or sponsor on [Open Collective](https://opencollective.com/level). Your logo or avatar will be displayed on our 28+ [GitHub repositories](https://github.com/Level), [npm](https://www.npmjs.com/) packages and (soon) [our website](http://leveldb.org). 💖
+
+### Backers
+
+[![Open Collective backers](https://opencollective.com/level/backers.svg?width=890)](https://opencollective.com/level)
+
+### Sponsors
+
+[![Open Collective sponsors](https://opencollective.com/level/sponsors.svg?width=890)](https://opencollective.com/level)
+
 ## License
 
 [MIT](LICENSE.md) © 2012-present Rod Vagg and [Contributors](CONTRIBUTORS.md).

package.json

@@ -11,7 +11,9 @@
     "rebuild": "node-gyp rebuild",
     "prebuild": "prebuildify -t 8.14.0 -t [email protected] --napi --strip",
     "download-prebuilds": "prebuildify-ci download",
-    "hallmark": "hallmark --fix"
+    "hallmark": "hallmark --fix",
+    "dependency-check": "dependency-check . test/*.js bench/*.js",
+    "prepublishOnly": "npm run dependency-check"
   },
   "dependencies": {
     "abstract-leveldown": "~6.0.0",
@@ -23,12 +25,13 @@
   "devDependencies": {
     "async": "^2.0.1",
     "coveralls": "^3.0.2",
-    "delayed": "~1.0.1",
+    "delayed": "^1.0.1",
+    "dependency-check": "^3.3.0",
     "du": "~0.1.0",
     "hallmark": "^0.1.0",
     "level-community": "^3.0.0",
     "level-concat-iterator": "^2.0.0",
-    "mkfiletree": "~1.0.1",
+    "mkfiletree": "^1.0.1",
     "monotonic-timestamp": "~0.0.8",
     "node-gyp": "^3.8.0",
     "nyc": "^12.0.2",
@@ -37,7 +40,7 @@
     "prebuildify-ci": "^1.0.4",
     "readfiletree": "~0.0.1",
     "rimraf": "^2.6.1",
-    "slump": "~3.0.0",
+    "slump": "^3.0.0",
     "standard": "^12.0.0",
     "tape": "^4.5.1",
     "tempy": "^0.2.1",