Add support for java.util.Optional
Add java.util.Optional support for injectable components
Add java.util.Optional support for Settings
Add Jackson JSR310 module
Time directive can inject a fixed JSR310 Clock
Modularize Java8 features
Provide default clock
Update to new restx version
Provide default Clock with a high priority to make it easier to override.
Create Java8 Maven profile to build java8 specific modules
Add Sample/Test app for Java8 features
The missing file
Merge pull request #94 from trecloux/java8

Java8 Optional and JSR310 Support