Switch compression to lzma2
Switch compression to lzma2

NiLuJe/koreader,koreader/koreader,Frenzie/koreader,pazos/koreader,koreader/koreader,mwoz123/koreader,Markismus/koreader,Hzj-jie/koreader,NiLuJe/koreader,Frenzie/koreader,poire-z/koreader,poire-z/koreader