GH219 - Buffer for keystrokes (for CodeMirror editor and Flex editor)
Merge remote-tracking branch 'origin/GH219-buffer-keystrokes'

Conflicts:
	org.flowerplatform.editor.text/flex_src/org/flowerplatform/editor/text/remote/CodeMirrorEditorStatefulClient.as
	org.flowerplatform.editor.text/public-resources/codemirror/codeMirrorEditor.html