Permit Optional Ordering Of Package Settings

- Fallback mode is still alphabetical sort
- Underscore's sortBy is a stable sort, so we can chain the two together reliably
- Uses an optional 'order' key in the schema; which does not actually need to be an integer, it could be anything
Inverting Guard To Fix Tests
Address :lipstick: From @kevinsawicki
More :lipstick:
Merge pull request #273 from joefitzgerald/sorted-settings

Allow (Optional) Ordering Of Settings In settings-view