Like Frenzie said, everything is included on latest builds.
Differences between that build (which was uploaded before merging some changes as a way to test if a non reproducible bug was fixed) an current master are:
https://github.com/koreader/koreader...cac5b8..master
That specific build shouldn't be used in production. Please install a newer build (every build from the last 15 days should work) from official repos.