后台样式调整
Merge branches 'development' and 'development' of github.com:cwcf/cwcf-cms-v1 into development

# By Zeng WeiMao
# Via Zeng WeiMao
* 'development' of github.com:cwcf/cwcf-cms-v1:
  add sth images
  change database to utf8

# By Zeng WeiMao
# Via Zeng WeiMao
* 'development' of github.com:cwcf/cwcf-cms-v1:
  add sth images
  change database to utf8