Deliverables

• Merge the release notes for 6.0 M1, 6.0 M2, 6.0 RC1, and 6.0 RC2 into release-notes-6.0.0.adoc.
• Remove the release notes files for 6.0 M1, 6.0 M2, 6.0 RC1, and 6.0 RC2.
• Ensure that release note entries which address changes between M1 and RC2 are removed or, if applicable, that each entry for a change in a later milestone is merged into the original corresponding entry from an earlier milestone.