feat(Launcher): Add LifecycleService.
feat(API): Add FxLifecycle and FxLifecycleContext.
feat(API): Add SimpleLabelApplicationDemo.
feat(API): Allow to set target Stage in FxLifecycle.
chore(API): Add license headers.
chore(Lifecycle): Add license headers.
docs(API): Add documentation for FxLifecycle.
feat(API): Add FXML example to SimpleLabelDemo.
chore(API): Add license headers.
refactor(Lifecycle): Extract LifecycleLauncher.
refactor(Lifecycle): Extract LifecycleLauncher.
chore(Gradle): Add links to Java 8 and JavaFX 8 javadocs.
Merge pull request #156 from hastebrot/feat-lifecycle-service

Feat(Lifecycle): Implement LifecycleService