Update a potion of the summary
Change the branch of savanna-commons
Modify the default notifier because of updated savanna-commons
Remove an unnecessary definition
Update require_otp_vsn and bump savanna_commons
Support latest savanna_commons
Bump savanna_commons and leo_rpc
Bump leo_rpc
Bump savanna_agent to 0.2.1
Merge branch 'release/0.2.1'