Improve unregister definition.
Divide notifyClassListener method in two new methods and remove strategy enum.
Solved bug: fill visitedBundles Set.
Check current platform bundles on BundleGuard boot.
Use custom logging configuration for tests.
Solve bundle dependency chain issue using refreshBundles() utility.
Add javax.inject dependency.
Solve SLF4J binding conflict excluding Karaf client.
Merge pull request #25 from logoff/core/bundletree_improvement

Bundletree improvements
Use proper OSGified javax.inject dependency.
Add author to bundletree-itests.
Export BundleGuard as an OAGi service. Use this instance in iTests properly.
Use blueprint in core bundle and BundleGuard. Adpat iTests properly.
Merge pull request #26 from logoff/core/bundletree_integration

Bundletree-core integration
Solve bug of notification and add some trace log messages.