v2.2.6

Features

• simplify the way to auto exclude libs for biz #814 @yuanyuancin
• support logback, each biz logs into each diff dir #807 #816 @yuanyuancin

Improvements or Bugs

• fix the way to parse sets in maven plugin #805 @novoland
• optimize auto exclude for ark plugin #818 @lvjing2
• modify plugin export with classes as default #819 @lvjing2
• remove unused libs #811 @lvjing2
• add ut #813 #817 #820 @lylingzhen