progress listener
solve conflict
Merge branch 'develop' of https://github.com/doki74216/hicloud-s3-java-sdk-testing into develop

Conflicts:
	s3+sdk+unitest/hicloud-s3-sdk-java-testing/bin/UploadPart.class
	s3+sdk+unitest/hicloud-s3-sdk-java-testing/src/UploadPart.java