Update readme and composer.json
Update version to 1.0.0 for release
Allow testing on release branches
Merge pull request #44 from VSEphpbb/release

Release Prep for 1.0.0
Use language "Show board announcement"
Merge pull request #46 from VSEphpbb/updates

Use language "Show board announcement"
Merge pull request #48 from phpbb-extensions/release-1.0.0

Merge Release 1.0.0 branch