Prepare Management API project for Jakarta EE 8 Release

[m0mus]

Tasks

• [x] Update text files
• [x] Generate "boilerplate" specification project
• [x] Make a staging release
• [x] Generate Stand-alone TCK test results - Not required. Covered by Platform TCK.
• [x] Create two PRs to jakartaee/specifications repository (spec and apidocs). Spec Draft PR: https://github.com/jakartaee/specifications/pull/75 Apidocs (Javadoc) Draft PR: https://github.com/jakartaee/specifications/pull/74
• [x] Update the Jakarta EE API jar by submitting a PR to the jakartaee-api project. PR #25

See here for detailed instructions.

[starksm64]

Updating text files