Dependency version upgrades

 - spring-integration-core 3.0.1.RELEASE (closes #360)
 - Logback 1.1.1 (closes #361)
 - maven-settings-builder 3.1.1 (closes #359)
 - maven-aether-provider 3.1.1 (closes #356)
 - jopt-simple 4.6 (closes #357)
 - SLF4J 1.7.6 (closes #318)