notifications.lua: implement the scheme with <count, fifo>
notifications.lua: implement the scheme with <count, fifo>

notifications.lua: implement the scheme with <count, fifo>
for each notification type.

BHYCHIK/tntlua,derElektrobesen/tntlua,grechkin-pogrebnyakov/tntlua,mailru/tntlua,spectrec/tntlua