[mod_fastcgi,log] support multi line logging (fixes #2252)

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@2866 152afb58-edef-0310-8abb-c4023f1b3aa9
call ERR_clear_error only for ssl connections in CON_STATE_ERROR

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@2867 152afb58-edef-0310-8abb-c4023f1b3aa9
reject non ASCII characters in HTTP header names

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@2868 152afb58-edef-0310-8abb-c4023f1b3aa9