'atom-text-editor':
  'ctrl-w': 'editor:delete-to-beginning-of-word'
'atom-workspace atom-text-editor:not([mini])':
  'ctrl-j': 'editor:join-lines'
'atom-workspace':
  'cmd-k cmd-u': 'change-case:upper'
  'cmd-k cmd-l': 'change-case:lower'
  'cmd-k cmd-f': 'change-case:upperFirst'
'body':
  'ctrl-tab': 'pane:show-next-item'
  'ctrl-tab ^ctrl': 'unset!'
  'ctrl-shift-tab': 'pane:show-previous-item'
  'ctrl-shift-tab ^ctrl': 'unset!'
  'shift-cmd-W': 'tabs:close-all-tabs'