Merge tag 'v2.3.0'

2.3.0
Fix jsdoc
Fix the test for built-in models on Windows

See https://github.com/strongloop/loopback/issues/756
Merge pull request #63 from strongloop/feature/fix-lb-issue-756

Fix the test for built-in models on Windows
Bump version
Merge branch 'release/2.3.1' into production