[knife] Added more custom cookbook paths #20 (#21)
[knife] Added more custom cookbook paths #20 (#21)

When running without specifying a custom .json file the node/myserver.json file is used by default.
In that case, ./apps and ./cookbooks are included as usual.

```
bundle exec knife solo cook myserver

# No custom cookbooks found at apps
# Using custom cookbooks located at cookbooks
```

But if you specify a custom .json file, it will look for cookbooks in the same folder as the json file.

```
bundle exec knife solo cook myserver /custom/path/to/myserver.json

# No custom cookbooks found at apps
# Using custom cookbooks located at /custom/path/to/cookbooks
```
funkensturm/warehouse,funkensturm/warehouse