Updated BuildAssets command
Updated BuildAssets command

- Added force option to run `uf-clean` (delete installed assets and
cached data)
- Check for `bundle.result.json` in production mode

alexweissman/UserFrosting,alexweissman/UserFrosting,splitt3r/UserFrosting,alexweissman/UserFrosting,splitt3r/UserFrosting,alexweissman/UserFrosting,splitt3r/UserFrosting