[fix] resolution:=optional
[feature] BundleSelector
[fix] Import own exports!
[fix] Collect super type and interfaces when computing required packages
[refactoring] Introduced BundleRequiredPackagesCollector, BundleRequiredPackagesResolver
[task #109] Tycho 0.18.0
[improvement] Filter un-connectable repos
[task] maven-dependency-model 0.1.0-alpha-1