Use PureComponent where possible and update civ5save library

package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "civ5save": "^0.0.16",
+    "civ5save": "^0.1.0",
     "material-ui": "next",
     "react": "^15.6.1",
     "react-dom": "^15.6.1",

src/components/PropertyCheckbox.js

@@ -1,8 +1,8 @@
 import Checkbox from 'material-ui/Checkbox';
 import { FormControlLabel } from 'material-ui/Form';
-import React, { Component } from 'react';
+import React, { PureComponent } from 'react';
 
-export default class PropertyCheckbox extends Component {
+export default class PropertyCheckbox extends PureComponent {
   constructor(props) {
     super(props);
 

src/components/PropertyNumberTextField.js

@@ -1,7 +1,7 @@
-import React, { Component } from 'react';
+import React, { PureComponent } from 'react';
 import TextField from 'material-ui/TextField';
 
-export default class PropertyNumberTextField extends Component {
+export default class PropertyNumberTextField extends PureComponent {
   constructor(props) {
     super(props);
 

src/components/PropertyRadioGroup.js

@@ -1,9 +1,10 @@
 import { FormControlLabel } from 'material-ui/Form';
 import Radio, { RadioGroup } from 'material-ui/Radio';
-import React, { Component } from 'react';
+import React, { PureComponent } from 'react';
 import Typography from 'material-ui/Typography';
 
-export default class PropertyRadioGroup extends Component {
+// XXX: If this.props.values needs to change, this class cannot be a PureComponent
+export default class PropertyRadioGroup extends PureComponent {
   constructor(props) {
     super(props);
 

src/components/UploadFileButton.js

@@ -2,9 +2,9 @@ import App from './App';
 import Civ5Save from 'civ5save';
 import Icon from 'material-ui/Icon';
 import { ListItem, ListItemIcon, ListItemText } from 'material-ui/List';
-import React, { Component } from 'react';
+import React, { PureComponent } from 'react';
 
-export default class UploadFileButton extends Component {
+export default class UploadFileButton extends PureComponent {
   constructor(props) {
     super(props);
 

yarn.lock

@@ -1318,9 +1318,9 @@ circular-json@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.1.tgz#be8b36aefccde8b3ca7aa2d6afc07a37242c0d2d"
 
-civ5save@^0.0.16:
-  version "0.0.16"
-  resolved "https://registry.yarnpkg.com/civ5save/-/civ5save-0.0.16.tgz#903be724d58ad5740d4053538e7c2a64fb4c0632"
+civ5save@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/civ5save/-/civ5save-0.1.0.tgz#0db2e52af7aa378f1addd4b13fecd7a0299be3ac"
   dependencies:
     babel-runtime "^6.26.0"