added special handling for on startup gamerules (/gamerule commands), unfortunately will clobber stdin for the running server process
added special handling for on startup gamerules (/gamerule commands), unfortunately will clobber stdin for the running server process

itzg/dockerfiles,jbeda/itzg-dockerfiles,jbeda/itzg-dockerfiles,jbeda/itzg-dockerfiles,ajthemacboy/dockerfiles