Merge branch 'release/0.8.19' into develop
Update require_otp_vsn
Upgrade leo_commons to 1.0.0
Revise the definition of callbacks
Improve stack-functions
Add the changelog
Modify the readme for v0.10.0
Upgrade rebar to v2.2.0
Bump leo_ordning_reda, to v0.10.0
Merge branch 'release/0.10.0'