4070-1.0.12

• Account for "trim_trailing_white_space_on_save" being a string (#1304) (Raoul Wols)
• Iterate over sessions in the listener via the session buffers (Raoul Wols)
• Fix: manually invoking signature help should not check the triggers (Raoul Wols)
• Fix color box phantoms background (Janos Wortmann)
• Add documentation for "feature_selector" (Rafał Chłodnicki)
• MarkedString rendering fixes (Rafał Chłodnicki)