331683 Publisher returns error status in case of invalid manifest

- BundlesAction will now return a multi-status with severity error (and
  details in child message(s)) in case of invalid MANIFEST or
  IOException.
- Static helper methods createBundleDescription(), loadManifest() and
  basicLoadManifest() now throw BundleException and IOException instead
  of ignoring them.
- Added corresponding ...IgnoringExceptions() methods (and marked them
  as deprecated) which preserve old behaviour and allow to adapt users
  of these methods as they see fit.

Bug 331683
26 files changed