keep chapter position when change book
show osis when chapter name greater than 7 (max osis)
version 0.8.12

. add share function
. add demo bible data
. use osis for low and medium dpi phone
. rewrite search activity to work on android 4.2.2
let search/share center_vertical
optimal verse show
version 0.8.13
upload binary apk bible-release.apk