Deep clean more file type
深度清理更多的文件类型

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>
ingone stderr output
忽略stderr输出

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>
Merge branch 'sources' into projects

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>
delete some unneeded files
删除一些不必要文件

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>
Merge branch 'projects' into dev-2

Conflicts:
	project/preprocess.bat

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>