Merge branch 'dev-2'
Merge branch 'dev-2'
更新安装、签名、清理脚本

Merge branch 'dev-2'

Signed-off-by: 宋万鹏@HP-CQ42 <swpustc@mail.ustc.edu.cn>
Merge branch 'dev-2'
Merge branch 'fix-tree-hook'
更新TREE，去除extra目录中文件的后缀.in

Merge branch 'dev-2'

Signed-off-by: 宋万鹏@HP-CQ42 <swpustc@mail.ustc.edu.cn>
生成的文件目录分为2级

Merge branch 'dev-2'

Signed-off-by: 宋万鹏@HP-CQ42 <swpustc@mail.ustc.edu.cn>
Merge branch 'dev-2'
remove_ifexist重试5次，并忽略stderr信息
Merge branch 'fix-copy-remove_ifexist' into fix-hook-2