Merge pull request #8 from garyrussell/master

Update to Spring Integration 4.0.3
Update to Spring Boot 1.1.5.RELEASE
Enable hiding/showing build steps
Upgrade to Spring Boot 1.1.6.RELEASE
Upgrade to Spring Boot 1.1.7.RELEASE
Upgrade to Spring Boot 1.1.8.RELEASE
Upgrade to Spring Boot 1.1.9.RELEASE
Convert to use https for repositories