Homeland 想测试将头像存入 upyun，请问 upyun_bucket: "ruby-china-files-dev"配置了哪些自定义缩略图尺寸啊？
支持头像否？ IMAGE_UPLOADER_ALLOW_IMAGE_VERSION_NAMES = %(20x20 30x30 240x240 100x100 120x90 160x120 250x187 320 640 800)
支持头像否？ IMAGE_UPLOADER_ALLOW_IMAGE_VERSION_NAMES = %(20x20 30x30 240x240 100x100 120x90 160x120 250x187 320 640 800)