message: clean up after removing 'add screen to left'
diff: @@ -21,14 +21,6 @@ export function reducer(state = {current: 0, list: []}, action) {
  switch (action.type) {
  case ADD_SCREEN:
  const insertAfter = action.data.insertAfterIndex
  - // Insert at the beginning
  - if (insertAfter === -1) {
  - return {
  - ...state,
  - list: [action.data.framebufId].concat(state.list)
  - }
  - }
  - // Otherwise in the middle of the list or at the end
  return {
  ...state,
  list: fp.arrayInsertAt(state.list, insertAfter+1, action.data.framebufId)
  @@ -104,7 +96,7 @@ export const actions = {
  })
  }
  },
  - newScreen: (insertAtBeginning = undefined) => {
  + newScreen: () => {
  return (dispatch, getState) => {
  const state = getState()
  const index = state.screens.current
  @@ -122,7 +114,6 @@ export const actions = {
  }
  dispatch({
  type: ADD_SCREEN_AND_FRAMEBUF,
  - insertAfterIndex: insertAtBeginning ? -1 : undefined,
  data: null
  })
  dispatch((dispatch, getState) => {
  