Merge pull request #231 from qiniu/rm_p_status

删除触发持久化处理
fix object sdk icon not show bug again
demo.json
entrance
html tempate
en -> zh-CN
json update
resource json update
image sprite
html update
js update
change image
change image
plugin icon update
Merge pull request #232 from SunLn/12103_add_entrance_for_demo_contest_result

add demo page
chg dn
Merge pull request #233 from forrest-mao/master

chg dn
chg dn again
modify description of avthumb&segtime
Merge pull request #234 from forrest-mao/master

chg some description