GuiEditor: don't loose selection && costmetics * now when editing parameters of midi events or notes, we do not reset the   selection, we re-find te incrimined editable. * one quick beautifulization pass
GuiEditor: don't loose selection && costmetics
* now when editing parameters of midi events or notes, we do not reset the
  selection, we re-find te incrimined editable.
* one quick beautifulization pass

smondet/locoseq