Bump base to pickup https://github.com/koreader/koreader-base/pull/1257
Bump base to pickup https://github.com/koreader/koreader-base/pull/1257

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