Apply common project tweaks (round 2) (#91)

* Add dependency-check

* Add Donate section and badges to README.md

* Unlock 5 devDependencies

* Add .travis.yml, appveyor.yml, .dntrc to .npmignore

* Run hallmark

* Tweak badges and links in README.md

.npmignore

@@ -18,3 +18,7 @@ AUTHORS
 Dockerfile
 .dockerignore
 .nyc_output/
+
+.travis.yml
+appveyor.yml
+.dntrc

CONTRIBUTORS.md

@@ -7,8 +7,8 @@
 | **David Björklund**     | [**@kesla**](https://github.com/kesla)                 | [**@david_bjorklund@twitter**](https://twitter.com/david_bjorklund)      |
 | **Julian Gruber**       | [**@juliangruber**](https://github.com/juliangruber)   | [**@juliangruber@twitter**](https://twitter.com/juliangruber)            |
 | **Yichao 'Peak' Ji**    | [**@peakji**](https://github.com/peakji)               |                                                                          |
-| **Vincent Weevers**     | [**@vweevers**](https://github.com/vweevers)           | [**@vweevers@twitter**](https://twitter.com/vweevers)                    |
 | **Mathias Buus**        | [**@mafintosh**](https://github.com/mafintosh)         | [**@mafintosh@twitter**](https://twitter.com/mafintosh)                  |
+| **Vincent Weevers**     | [**@vweevers**](https://github.com/vweevers)           | [**@vweevers@twitter**](https://twitter.com/vweevers)                    |
 | **Matteo Collina**      | [**@mcollina**](https://github.com/mcollina)           | [**@matteocollina@twitter**](https://twitter.com/matteocollina)          |
 | **Dominic Tarr**        | [**@dominictarr**](https://github.com/dominictarr)     | [**@dominictarr@twitter**](https://twitter.com/dominictarr)              |
 | **Raynos**              |                                                        |                                                                          |

README.md

@@ -2,19 +2,20 @@
 
 > A Low-level Node.js RocksDB binding
 
-[![level badge][level-badge]](https://github.com/level/awesome)
-[![npm](https://img.shields.io/npm/v/rocksdb.svg)](https://www.npmjs.com/package/rocksdb)
-![Node version](https://img.shields.io/node/v/rocksdb.svg)
-[![Travis](https://img.shields.io/travis/Level/rocksdb.svg?label=travis)](http://travis-ci.org/Level/rocksdb)
-[![AppVeyor](https://img.shields.io/appveyor/ci/Level/rocksdb.svg?label=appveyor)](https://ci.appveyor.com/project/Level/rocksdb)
-[![dependencies](https://img.shields.io/david/Level/rocksdb.svg)](https://david-dm.org/level/rocksdb)
-[![npm downloads](https://img.shields.io/npm/dm/rocksdb.svg)](https://www.npmjs.com/package/rocksdb)
+[![level badge][level-badge]](https://github.com/Level/awesome)
+[![npm](https://img.shields.io/npm/v/rocksdb.svg?label=&logo=npm)](https://www.npmjs.com/package/rocksdb)
+[![Node version](https://img.shields.io/node/v/rocksdb.svg)](https://www.npmjs.com/package/rocksdb)
+[![Travis](https://img.shields.io/travis/Level/rocksdb.svg?logo=travis&label=)](https://travis-ci.org/Level/rocksdb)
+[![AppVeyor](https://img.shields.io/appveyor/ci/Level/rocksdb.svg?logo=appveyor&label=)](https://ci.appveyor.com/project/Level/rocksdb)
+[![npm downloads](https://img.shields.io/npm/dm/rocksdb.svg?label=dl)](https://www.npmjs.com/package/rocksdb)
 [![Coverage Status](https://coveralls.io/repos/github/Level/rocksdb/badge.svg)](https://coveralls.io/github/Level/rocksdb)
 [![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)
 
 **If you are upgrading:** please see [UPGRADING.md](UPGRADING.md).
 
-`rocksdb` is based on the [LevelDown](https://github.com/level/leveldown) code, which was extracted from [LevelUP](https://github.com/level/levelup) and now serves as a stand-alone binding for LevelDB. The native code in `rocksdb` is based on [Facebooks fork of LevelDB](https://github.com/facebook/rocksdb).
+`rocksdb` is based on the [LevelDown](https://github.com/Level/leveldown) code, which was extracted from [LevelUP](https://github.com/Level/levelup) and now serves as a stand-alone binding for LevelDB. The native code in `rocksdb` is based on [Facebooks fork of LevelDB](https://github.com/facebook/rocksdb).
 
 It is **strongly recommended** that you use LevelUP in preference to `rocksdb` 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 `rocksdb` interface it is still easy to crash your Node process if you don't do things in just the right way.
 
@@ -31,7 +32,7 @@ It is **strongly recommended** that you use LevelUP in preference to `rocksdb` u
 <a name="api"></a>
 ## API
 
-`rocksdb` implements the same API of [LevelDown](https://github.com/level/leveldown#api).
+`rocksdb` implements the same API of [LevelDown](https://github.com/Level/leveldown#api).
 
 <a name="support"></a>
 ## Getting Support
@@ -58,6 +59,18 @@ If you are working on `rocksdb` and want to re-compile the C++ code it's enough
 
 If you don't want to use the `prebuild` for the platform you are installing on, specify the `--build-from-source` flag when you install.
 
+## 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

@@ -10,7 +10,9 @@
     "coverage": "nyc report --reporter=text-lcov | coveralls",
     "rebuild": "prebuild --compile",
     "prebuild": "prebuild -t 8.1.2 -t 6.11.0 -t 4.8.3 -t 7.10.0 --strip --verbose",
-    "hallmark": "hallmark --fix"
+    "hallmark": "hallmark --fix",
+    "dependency-check": "dependency-check . test/*.js bench/*.js",
+    "prepublishOnly": "npm run dependency-check"
   },
   "dependencies": {
     "abstract-leveldown": "~5.0.0",
@@ -22,21 +24,22 @@
   "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",
-    "iota-array": "~1.0.0",
+    "iota-array": "^1.0.0",
     "level-community": "^3.0.0",
-    "lexicographic-integer": "~1.1.0",
-    "mkfiletree": "~1.0.1",
+    "lexicographic-integer": "^1.1.0",
+    "mkfiletree": "^1.0.1",
     "monotonic-timestamp": "~0.0.8",
     "nyc": "^12.0.2",
     "optimist": "~0.6.1",
     "prebuild": "^8.0.0",
     "prebuild-ci": "^2.0.0",
     "readfiletree": "~0.0.1",
     "rimraf": "^2.6.1",
-    "slump": "~3.0.0",
+    "slump": "^3.0.0",
     "standard": "^12.0.0",
     "tape": "^4.5.1",
     "uuid": "^3.2.1",