[release] v3.4.0-bugfix

[release] v3.4.0

[release] v3.3.3

[release] v3.3.2

[release] v3.3.1

[release] v3.3.0

[fix] exclude log4j in powerjob-server to avoid compile error

[fix] fix the bug of worker can't connect to server

[release] v3.2.2

[release] merge branch 'v3.2.1'