v0.7.0

additionally to the last RC this fixes the dfmt.singleIndent setting not being passed through

See

• https://github.com/Pure-D/serve-d/releases/tag/v0.7.0-rc.1
• https://github.com/Pure-D/serve-d/releases/tag/v0.7.0-rc.2
• https://github.com/Pure-D/serve-d/releases/tag/v0.7.0-rc.3