Prepare XML Registries 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
• [x] Create a PR to jakartaee/specifications repository https://github.com/jakartaee/specifications/pull/88
• [x] Update the Jakarta EE API jar by submitting a PR to the jakartaee-api project https://github.com/eclipse-ee4j/jakartaee-api/pull/33

See here for detailed instructions.

[starksm64]

Updating text files