Send init_args to from_struct instead of db representation of key.
Merge branch 'master' into init_args_to_from_struct
Merge branch 'master' into init_args_to_from_struct
Merge branch 'master' into init_args_to_from_struct
Merge branch 'master' into init_args_to_from_struct
Use wooga's fork of s3erl

Knutin's master functionality has been merged there.