BundleGuard, ClassFilter and ClassListener interfaces.
Move Bundle utilities to centralized package. Update references. Add exceptions package.
First BundleGuard implementation.
Create mqnaas-core-api feature and update mqnaas one. Add proper javax.ws.rs API bundle.
Add BundleTree tests. Add Pax Exam dependencies. Create bundletree feature.
Avoid cycles looking for dependent bundles.
Improve BundleUtils with strategy, avoiding cycles and applying lookup per layer.
Warn about not analyzable bundles.
Add BundleUtils integration tests.
Remove Activator. Obtain BundleContext from FrameworkUtil.
Improve BundleGuard creating ConcurrentBundleGuardData and other minor changes.
Solve minor BundleGuardTest bug.
Merge branch 'master' of https://github.com/dana-i2cat/mqnaas into core/new-bundletree

Conflicts solved:
	pom.xml
Minor improvements on ConcurrentBundleGuardDatax.
Remove unused classes in tests bundles.
Merge pull request #21 from logoff/core/new-bundletree

New bundletree