Adding a link to config docs in config.example.js

closes #1997
Load Apps Sandboxed

- Based on suggestions from hswolff loading with a Module class approach
- Loads relative modules in child sandboxes
Merge pull request #2091 from jgable/sandboxApps

Load Apps Sandboxed
Fixing App unit test on Windows

- switched test from exact string to regex to match both types of paths