old_contents: //! moment.js
  //! version : 2.8.3
  //! authors : Tim Wood, Iskren Chernev, Moment.js contributors
  //! license : MIT
  //! momentjs.com
  
  var VERSION = '2.8.3';
  
  import "./duration/all";
  import "./locale/all";
  import "./moment/all";
  import "./units/all";
  
  import { deprecate } from "./utils/deprecate";
  
  import { createLocal } from "./create/local";
  import { createUTC } from "./create/utc";
  import { createInvalid } from "./create/valid";
  
  import { createDuration } from "./duration/create";
  import { isDuration } from "./duration/constructor";
  import { getSetRelativeTimeThreshold } from "./duration/humanize";
  
  import { normalizeUnits } from "./units/aliases";
  
  import { isMoment, momentPrototype } from "./moment/constructor";
  import { min, max } from "./moment/min-max";
  
  import { getSetGlobalLocale, defineLocale, getLocale } from "./locale/locales";
  import { listMonths, listMonthsShort, listWeekdays, listWeekdaysShort, listWeekdaysMin } from "./locale/lists";
  
  import { hooks, setHookCallback } from "./utils/hooks";
  
  var moment = hooks;
  
  setHookCallback(createLocal);
  
  // creating with unix timestamp (in seconds)
  moment.unix = function (input) {
      return createLocal(input * 1000);
  };
  
  moment.utc = createUTC;
  
  // duration
  moment.duration = createDuration;
  
  // version number
  moment.version = VERSION;
  
  moment.relativeTimeThreshold = getSetRelativeTimeThreshold;
  
  moment.locale       = getSetGlobalLocale;
  moment.defineLocale = defineLocale;
  moment.localeData   = getLocale;
  moment.lang         = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
  moment.langData     = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);
  
  moment.isMoment   = isMoment;
  moment.isDuration = isDuration;
  
  moment.min = min;
  moment.max = max;
  
  moment.months        = listMonths;
  moment.monthsShort   = listMonthsShort;
  moment.weekdays      = listWeekdays;
  moment.weekdaysShort = listWeekdaysShort;
  moment.weekdaysMin   = listWeekdaysMin;
  
  moment.normalizeUnits = normalizeUnits;
  
  moment.invalid = createInvalid;
  moment.fn = momentPrototype;
  
  moment.parseZone = function () {
      return createLocal.apply(null, arguments).parseZone();
  };
  
  export default moment;
  
new_contents: //! moment.js
  //! version : 2.8.3
  //! authors : Tim Wood, Iskren Chernev, Moment.js contributors
  //! license : MIT
  //! momentjs.com
  
  var VERSION = '2.8.3';
  
  import "./duration/all";
  import "./locale/all";
  import "./moment/all";
  import "./units/all";
  
  import { deprecate } from "./utils/deprecate";
  
  import { createLocal } from "./create/local";
  import { createUTC } from "./create/utc";
  import { createInvalid } from "./create/valid";
  
  import { createDuration } from "./duration/create";
  import { isDuration } from "./duration/constructor";
  import { getSetRelativeTimeThreshold } from "./duration/humanize";
  
  import { normalizeUnits } from "./units/aliases";
  
  import { isMoment, momentPrototype } from "./moment/constructor";
  import { min, max } from "./moment/min-max";
  
  import { getSetGlobalLocale, defineLocale, getLocale } from "./locale/locales";
  import { listMonths, listMonthsShort, listWeekdays, listWeekdaysShort, listWeekdaysMin } from "./locale/lists";
  
  import { hooks, setHookCallback } from "./utils/hooks";
  
  var moment = hooks;
  
  setHookCallback(createLocal);
  
  // creating with unix timestamp (in seconds)
  moment.unix = function (input) {
      return createLocal(input * 1000);
  };
  
  moment.utc = createUTC;
  
  moment.duration = createDuration;
  
  // version number
  moment.version = VERSION;
  
  moment.relativeTimeThreshold = getSetRelativeTimeThreshold;
  
  moment.locale       = getSetGlobalLocale;
  moment.defineLocale = defineLocale;
  moment.localeData   = getLocale;
  moment.lang         = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
  moment.langData     = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);
  
  moment.isMoment   = isMoment;
  moment.isDuration = isDuration;
  
  moment.min = min;
  moment.max = max;
  
  moment.months        = listMonths;
  moment.monthsShort   = listMonthsShort;
  moment.weekdays      = listWeekdays;
  moment.weekdaysShort = listWeekdaysShort;
  moment.weekdaysMin   = listWeekdaysMin;
  
  moment.normalizeUnits = normalizeUnits;
  
  moment.invalid = createInvalid;
  moment.fn = momentPrototype;
  
  moment.parseZone = function () {
      return createLocal.apply(null, arguments).parseZone();
  };
  
  export default moment;
  
subject: Remove useless comment