Bump shelljs from 0.1.4 to 0.8.5

Bumps [shelljs](https://github.com/shelljs/shelljs) from 0.1.4 to 0.8.5.
- [Release notes](https://github.com/shelljs/shelljs/releases)
- [Changelog](https://github.com/shelljs/shelljs/blob/master/CHANGELOG.md)
- [Commits](shelljs/shelljs@v0.1.4...v0.8.5)

---
updated-dependencies:
- dependency-name: shelljs
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -29,7 +29,7 @@
     "express": "~ 3.x",
     "optimist": ">= 0.2.4",
     "nodeunit": "0.9.0",
-    "shelljs": "0.1.4",
+    "shelljs": "0.8.5",
     "uglify-js": "1.3.5",
     "websocket": "~1"
   },