Locale prop no longer working

Issue Description

The prop locale doesn’t seem to work anymore for the time separators in the chat.

Steps to Reproduce / Code Snippets

You find it here: https://snack.expo.io/SJD3c-swG

import React, { Component } from 'react';
import { View } from 'react-native';
import { GiftedChat } from 'react-native-gifted-chat' // 0.3.0

export default class App extends Component {
  render() {
    const userId= '123';
    const messages = [{
      _id: '1',
      createdAt: 1519225196922,
      text: 'Hello',
      user: {
        _id: userId,
        name: "Name",
      },
    }]
    return (
      <View style={{flex:1}}>
        <GiftedChat
          messages={messages}
          user={{ _id: userId }}
          dateFormat={'dddd DD. MMMM'}
          locale={'nb'}
        />
      </View>
    );
  }
}

Expected Results

That the time separator should be in norwegian (according to locale prop)

Additional Information

• Nodejs version: 7.5.0
• React version: 16.2.0
• React Native version: 0.52
• react-native-gifted-chat version: 0.3.0
• Platform(s) (iOS, Android, or both?): At least on iOS (haven’t tested android)

[mafiusu]

Having the same issue. But it’s working if you import this

import "moment";
import "moment/locale/nb";

[xcarpentier]

#1397 we will use dayjs instead