add:实现分类列表显示
	数据库设置ui
modify：布局调整
delete：删除了一些不必要的按钮
隐藏nid和cid的显示，录视频用版本

Signed-off-by: youzipi <blake_12@qq.com>
fixed bugs

Signed-off-by: youzipi <blake_12@qq.com>
news0.py: 删除无用代码
	修复预分类按钮从ui中删除，代码中未清理的错误
spider.py：解决对shtml网页不支持的问题
Signed-off-by: youzipi <blake_12@qq.com>
Signed-off-by: youzipi <blake_12@qq.com>
update

Signed-off-by: youzipi <blake_12@qq.com>
Signed-off-by: youzipi <blake_12@qq.com>
新ui：news1.ui
按钮样式修改
布局修改->splitter，窗口变化，部件跟随

Signed-off-by: youzipi <blake_12@qq.com>
Merge branch 'dev4'

Conflicts:
	Ui_news0.py