Lol man why you dont search.There are actually three dev teams.L2j(l2j for core and l2jdb for datapack)l2jfree and l2emu
As official have gracia support all team start to develop it.However only l2j give support.L2jfree and emu does not support until a stable release comes out.They have it of course in svn but you need to compile.(I recommend you to learn how)
Dont use gracia until a stable release comes out.Use latest hellbound.I recommend you l2jfree