v4.4.3-server: Merge pull request #2 from maesker/master

fixed _str_ representation for directory typed SeafDirent objects

v4.4.3-pro: Merge pull request #2 from maesker/master

fixed _str_ representation for directory typed SeafDirent objects

v4.4.2-server: Merge pull request #2 from maesker/master

fixed _str_ representation for directory typed SeafDirent objects

v4.4.2-pro: Merge pull request #2 from maesker/master

fixed _str_ representation for directory typed SeafDirent objects

v4.4.1-server

fixed raising excepiton code in oss backend

v4.4.1-pro

fixed raising excepiton code in oss backend

v4.4.0-server

fixed raising excepiton code in oss backend

v4.4.0-pro

fixed raising excepiton code in oss backend

v4.3.4-pro

fixed raising excepiton code in oss backend

v4.3.3-pro

fixed raising excepiton code in oss backend