remove useless value in BlowList
Merge branch 'master' of https://github.com/koninka/MonsterQuest
rename AttackFlag to BlowFlag
fix wrong place of adding flags to map

Because there are no instances of NeverMoveFlag and NeverBlowFlag due to its
useless (they would have a empty Do() method), it's needed to add flag
name in map added whenever one exists or doesn't.
remove useless if branch
return setting mob's target to nil when it's out of vision
add attacker and targer fields in attack messages
link players with websocket connections
notify players about attack
take away mob after its death
remove unused module from import
add stupid walk tactic for mob
Merge branch 'master' of https://github.com/koninka/MonsterQuest