[FIX] errorreport: For serializable requests the X-Tiki-Error header needs to be on one line, apparently

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49790 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] errorreport: Attach error close button event in ajaxComplete error handler

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49791 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] cart: No need to repeat error display now and fix onbehalf param mix-up

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49792 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] cart: Straighten out some bad html (nested <p> tags, using <br> for layout etc)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49793 b456876b-0849-0410-b77d-98878d47e9d5