delete old messages when channel is left

See merge request !13

Add internal password generation and storage

See merge request !11

# Conflicts:
#	go.sum

Make the message id index unique

See merge request !10

# Conflicts:
#   go.sum

# Conflicts:
#   go.mod
#   go.sum

Modify the fallback logic in receiveHelper to work even if we don't get errors like we expect from it

Updates to match the client fullyDecentrilizedChannels branch

See merge request !8

Richard T. Carback III authored 2 years ago and Jono Wenger committed 2 years ago

Perform a message lookup on the MessageID if it is non-zero and update that message instead of inserting a new message. Added a msgIDLookup(...) function to support this. Removed all the checkZero calls