commitEditor.addFile(IOTA, null, SVNRepository.INVALID_REVISION);
commitEditor.applyTextDelta(IOTA, null);
String fileText = (String) ourGreekTreeFiles.get(IOTA);
String checksum = deltaGenerator.sendDelta(IOTA, new ByteArrayInputStream(fileText.getBytes()),
commitEditor, true);
commitEditor.closeFile(IOTA, checksum);
//add /A directory
commitEditor.addDir("A", null, SVNRepository.INVALID_REVISION);
//add /A/mu file