Makes Atom more Sublime on Windows

'.platform-win32 .editor, .platform-linux .editor':
 'ctrl-shift-L': 'editor:split-selections-into-lines'
 'ctrl-alt-up': 'editor:add-selection-above'
 'ctrl-alt-down': 'editor:add-selection-below'

'.pane .editor:not(.mini)':
 'tab': 'emmet:expand-abbreviation'