Merge branch 'release/0.12.17' into develop
impl temporary solution against #90. to be solved fundamentally later
Fix leo-project/leofs#90 fundamentally
Fix leo-project/leofs#98
Fix leo-project/leofs#97
Add the explanation about auth_uri
Add data migration feature which will resolve #100
Remove an unncessary lib
Add Cowboy's mods
Format codes
Add bucket-transform-handler's test and refactor
Rollback depends on a lib
Bump leo_s3_libs to 0.12.18
Merge branch 'release/0.12.18'