try to support private bucket
ajax send
Merge remote-tracking branch 'origin/master' into 8429_support_private_bucket

Conflicts:
	demo/js/main.js
	demo/server.js
make file update
update server.js
get_downtoken
main.js
add imageview
update ui.js
rename/update func
remove imageview in baseUrl
config update
throw error if json format error
add comment
fix bug
readme
fix x:val bug
update readme
-200 -> plupload.HTTP_ERROR
change repo link