content management preview pane displays post title
content management preview pane displays post title

closes #477

- change to preview.hbs to show title as a h1

airycanon/Ghost-Admin,TryGhost/Ghost-Admin,dbalders/Ghost-Admin,TryGhost/Ghost-Admin,JohnONolan/Ghost-Admin,acburdine/Ghost-Admin,JohnONolan/Ghost-Admin,kevinansfield/Ghost-Admin,acburdine/Ghost-Admin,kevinansfield/Ghost-Admin,airycanon/Ghost-Admin,dbalders/Ghost-Admin