Added support for LuaJIT2 (beta8)

build/te4core.lua

game/thirdparty/jit/bc.lua

game/thirdparty/jit/bcsave.lua

game/thirdparty/jit/dis_arm.lua

game/thirdparty/jit/dis_x64.lua

game/thirdparty/jit/dis_x86.lua

game/thirdparty/jit/dump.lua

game/thirdparty/jit/v.lua

game/thirdparty/jit/vmdef.lua

game/thirdparty/lanes.lua

premake4.lua

src/luajit2/dynasm/dasm_arm.h

src/luajit2/dynasm/dasm_arm.lua

src/luajit2/dynasm/dasm_ppc.h

src/luajit2/dynasm/dasm_ppc.lua

src/luajit2/dynasm/dasm_proto.h

src/luajit2/dynasm/dasm_x64.lua

src/luajit2/dynasm/dasm_x86.h

src/luajit2/dynasm/dasm_x86.lua

src/luajit2/dynasm/dynasm.lua