Deis Logger v2.4.0

v2.3.2 -> v2.4.0

Features

• 7498fe5 model/message_handler: Add time to log message output

Maintenance

• a756744 tests: Add more tests to increase coverage
• bcf8bb4 Dockerfile: update deis/base to 0.3.5
• 65c2d14 Makefile: update deis/go-dev to 0.20.0