Fix up the resizing on Linux (rearranging the code for more reuse across platforms), and add a note to the readme re focus problems on Linux. Change windows to use a multi-line edit control so it is easier to visually confirm the child window is resizing correctly.
git-svn-id: svn://10.0.0.236/trunk@88187 18797224-902f-48f8-a5cc-f745e15eee43
34797f42c7