beacon: prepare for handling POST requests
beacon: prepare for handling POST requests

wanrui/ngx_pagespeed,0x0mar/ngx_pagespeed,pagespeed/ngx_pagespeed,digideskio/ngx_pagespeed,wanrui/ngx_pagespeed,digideskio/ngx_pagespeed,pagespeed/ngx_pagespeed,0x0mar/ngx_pagespeed