Generate files with consistent whitespace

All lines in a text file should end with a single new-line character,
even the last line in the file.
Merge tag 'v2.2.0'

2.2.0
Merge pull request #38 from strongloop/feature/generate-clean-whitespace

Generate files with consistent whitespace
Expose ACL related models to models.json
Merge pull request #42 from strongloop/feature/export-acl

Expose ACL related models to models.json
Merge branch 'release/2.2.1' into production