Prepare 0.4.0 release
Prepare 0.4.0 release

peter1000/one-light-syntax,lihebi/one-light-syntax,AntreasAntoniou/one-light-syntax,lihebi/one-light-syntax,AntreasAntoniou/one-light-syntax,lihebi/one-light-syntax,AntreasAntoniou/one-light-syntax,AntreasAntoniou/one-light-syntax,peter1000/one-light-syntax,lihebi/one-light-syntax,peter1000/one-light-syntax,lihebi/one-light-syntax,peter1000/one-light-syntax,peter1000/one-light-syntax,AntreasAntoniou/one-light-syntax,peter1000/one-light-syntax,lihebi/one-light-syntax,AntreasAntoniou/one-light-syntax