Rearrange existing propTypes to match the README

Author: cooperka

src/GiftedChat.js

@@ -475,11 +475,9 @@ GiftedChat.childContextTypes = {
 
 GiftedChat.defaultProps = {
   messages: [],
-  onSend: () => {
-  },
+  onSend: () => {},
   loadEarlier: false,
-  onLoadEarlier: () => {
-  },
+  onLoadEarlier: () => {},
   locale: null,
   isAnimated: Platform.select({
     ios: true,
@@ -516,35 +514,35 @@ GiftedChat.defaultProps = {
 
 GiftedChat.propTypes = {
   messages: PropTypes.array,
+  messageIdGenerator: PropTypes.func,
+  user: PropTypes.object,
   onSend: PropTypes.func,
-  onInputTextChanged: PropTypes.func,
-  loadEarlier: PropTypes.bool,
-  onLoadEarlier: PropTypes.func,
   locale: PropTypes.string,
   isAnimated: PropTypes.bool,
-  renderAccessory: PropTypes.func,
-  renderActions: PropTypes.func,
+  loadEarlier: PropTypes.bool,
+  onLoadEarlier: PropTypes.func,
+  isLoadingEarlier: PropTypes.bool,
+  renderLoading: PropTypes.func,
+  renderLoadEarlier: PropTypes.func,
   renderAvatar: PropTypes.func,
   renderBubble: PropTypes.func,
-  renderFooter: PropTypes.func,
-  renderChatFooter: PropTypes.func,
+  renderMessage: PropTypes.func,
   renderMessageText: PropTypes.func,
   renderMessageImage: PropTypes.func,
-  renderComposer: PropTypes.func,
   renderCustomView: PropTypes.func,
   renderDay: PropTypes.func,
+  renderTime: PropTypes.func,
+  renderFooter: PropTypes.func,
+  renderChatFooter: PropTypes.func,
   renderInputToolbar: PropTypes.func,
-  renderLoadEarlier: PropTypes.func,
-  renderLoading: PropTypes.func,
-  renderMessage: PropTypes.func,
+  renderComposer: PropTypes.func,
+  renderActions: PropTypes.func,
   renderSend: PropTypes.func,
-  renderTime: PropTypes.func,
-  user: PropTypes.object,
+  renderAccessory: PropTypes.func,
   bottomOffset: PropTypes.number,
   minInputToolbarHeight: PropTypes.number,
-  isLoadingEarlier: PropTypes.bool,
-  messageIdGenerator: PropTypes.func,
   keyboardShouldPersistTaps: PropTypes.oneOf(['always', 'never', 'handled']),
+  onInputTextChanged: PropTypes.func,
 };
 
 export {