merge 34cf1aad3135e227380d91ace7b1a6c8255e8278 to 2ddc87f23522226bbf3354bd304fec23fadb5a18 (from 1.0), refs #894
merge [3551/branches/1.0], refs #895
added AgaviWebRequest::isHttps() convenience method, closes #897
merge [3559/branches/0.11], refs #897