chore(core): prepare relase 1.2.13

relase 1.2.12

docs(readme): upgrade to 1.2.11

update jar to 1.2.10

fix shwenzhang#210

docs(readme): add - for digestalg

support as 3.0

supprot android studio 3.0

feat(sample): set digestalg parameter in sample app

chore(build): upgrade verstion to 1.2.6 in readme

prepare release 1.2.5