Fixed 1.9 BossBars and improved them, you can now have multiple BossBars per player
Improved ScoreBoards (displayslots: "SIDEBAR", "BELLOW_NAME", "PLAYER_LIST")
Changed some syntaxes, see yourself
Changed BarAPI with BossBarAPI for 1.8, a new syntax is out
Added swim event
Added BossBar list expression
Added nametag effect
Added header and footer effect
Changed ticks with seconds in some syntaxes