Merge branch 'release/0.14.1-RC2' into develop
Fix calling wrong function
Update Cowboy to 0.8.3 and Ranch to 0.8.0

For chunk size support and much faster connecting speed.
Use the configured chunk size when streaming
Don't use set_resp_body unless strictly required

Now the body is starting to be sent on the same packet as the
response instead of after waiting the TCP round-trip, which
means the client receives a little faster.

This will probably not have an impact on benchmarks except on
small to medium files.
Remove unnecessary functions and optimize large-object handler's codes
Fix wrong total num of chunks
Fix wrong total num of chunks, again
Remove an unnecessary function
Format codes
Change object-storage's version
Refactor
Refactor
Implement storing chuncked objects into the cache
Fix calling wrong function
Support for retrieving configuration
Implement storing chuncked objects into the cache when retrieving large-object
Check chunked-object's consistency with storage
fix parsing a multi upload complete xml which contains extra spaces
Add leo-cache instead of ecache