Fix lint errors and warnings

Summary:
Fix the following problems resulting from running `npm run lint`:

```
Examples/Movies/SearchScreen.js
  118:4  error  'fetch' is not defined  no-undef
  177:4  error  'fetch' is not defined  no-undef

Examples/UIExplorer/MapViewExample.js
  32:1  warning  Missing semicolon  semi

Examples/UIExplorer/NavigatorIOSColorsExample.js
  48:26  warning  ['lightContent'] is better written in dot notation  dot-notation

Examples/UIExplorer/TabBarIOSExample.js
  81:16  warning  Trailing spaces not allowed  no-trailing-spaces

Examples/UIExplorer/TextInputExample.js
  390:7  warning  Missing semicolon  semi

✖ 6 problems
```
Closes https://github.com/facebook/react-native/pull/1254
Github Author: Eric Sauter <esauter@lgscout.com>

Test Plan: Imported from GitHub, without a `Test Plan:` line.

.eslintrc

@@ -16,6 +16,7 @@
     "document": false,
     "escape": false,
     "exports": false,
+    "fetch": false,
     "global": false,
     "jest": false,
     "Map": true,

Examples/UIExplorer/ExampleTypes.js

@@ -27,4 +27,3 @@ export type ExampleModule = {
   examples: Array<Example>;
   external?: bool;
 };
-

Examples/UIExplorer/MapViewExample.js

@@ -29,7 +29,7 @@ var regionText = {
   longitude: '0',
   latitudeDelta: '0',
   longitudeDelta: '0',
-}
+};
 
 var MapRegionInput = React.createClass({
 

Examples/UIExplorer/NavigatorIOSColorsExample.js

@@ -45,7 +45,7 @@ var NavigatorIOSColors = React.createClass({
 
   render: function() {
     // Set StatusBar with light contents to get better contrast
-    StatusBarIOS.setStyle(StatusBarIOS.Style['lightContent']);
+    StatusBarIOS.setStyle(StatusBarIOS.Style.lightContent);
 
     return (
       <NavigatorIOS

Examples/UIExplorer/TextInputExample.js

@@ -387,7 +387,7 @@ exports.examples = [
             <View style={styles.multilineChild}/>
           </TextInput>
         </View>
-      )
+      );
     }
   }
 ];