Fix bin/publish: copy docs.dist from project root

Fix bin/publish: use correct .env path for rspade_system
Fix bin/publish script: prevent grep exit code 1 from terminating script

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vendor/spatie/ignition/node_modules/duplexer/README.md

@@ -0,0 +1,49 @@
+# duplexer
+
+[![build status][1]][2] [![dependency status][3]][4]
+
+[![browser support][5]][6]
+
+Creates a duplex stream
+
+Taken from [event-stream][7]
+
+## duplex (writeStream, readStream)
+
+Takes a writable stream and a readable stream and makes them appear as a readable writable stream.
+
+It is assumed that the two streams are connected to each other in some way.
+
+## Example
+
+```js
+var cp = require('child_process')
+  , duplex = require('duplexer')
+  , grep = cp.exec('grep Stream')
+
+duplex(grep.stdin, grep.stdout)
+```
+
+## Installation
+
+`npm install duplexer`
+
+## Tests
+
+`npm test`
+
+## Contributors
+
+ - Dominictarr
+ - Raynos
+ - samccone
+
+## MIT Licenced
+
+  [1]: https://secure.travis-ci.org/Raynos/duplexer.png
+  [2]: https://travis-ci.org/Raynos/duplexer
+  [3]: https://david-dm.org/Raynos/duplexer.png
+  [4]: https://david-dm.org/Raynos/duplexer
+  [5]: https://ci.testling.com/Raynos/duplexer.png
+  [6]: https://ci.testling.com/Raynos/duplexer
+  [7]: https://github.com/dominictarr/event-stream#duplex-writestream-readstream