* add option to delete a user's messages
add optional parameter remove_messages to the ban and warn commands
add event for clients to redact messages
implement server side command and message handling
implement server history removal
todo: client side implementation
add option to remove messages to moderator action dialogs
add storage of message beginnings to chatview
add redactMessage command
handle Event_RemoveMessages on rooms
this approach is favored over parsing the chatroom after the fact but
will use additional memory to store the block indexes
this also leaves a problem in that user messages from the chat backlog
are not removed in the same way because they don't have a user
associated with them
add workaround for old qt versions
add action for users to remove messages from users in chats
add chat history to userMessagePositions with regex
proper const usage for userName
allow removing the messages of unregistered users
add menus to usernames in chat history
this allows you to remove user messages on chat history as well
this also allows moderators to take actions on users in chat history
Apply suggestions from code review
* readd missing call to handler
