* Allocate the buffer to flatten the message on the heap, if it's size is bigger then a given
buffer on the stack. It seem's to exceed the stack size (this might count for AddFlat() too).
Note: With this change one is able to copy the text into the clipboard (1mb), but it
is still impossible to paste it somewhere, as in BClipboard::_DownloadFromSystem()
SendMessage() fails transferring the data back in the reply msg because of the port size limit...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24196 a95241bf-73f2-0310-859d-f6bbb57e9c96