chore(maps): Rename maps component to google-maps

[finishes #94550238]

Signed-off-by: Geoff Pleiss <gpleiss@pivotal.io>

package.json

@@ -101,7 +101,7 @@
     "pui-css-labels": "^0",
     "pui-css-links": "^0",
     "pui-css-lists": "^0",
-    "pui-css-maps": "^0",
+    "pui-css-google-maps": "^0",
     "pui-css-media": "^0",
     "pui-css-modals": "^0",
     "pui-css-panels": "^0",

src/pivotal-ui/components/maps/README.md → src/pivotal-ui/components/google-maps/README.md

@@ -1,5 +1,12 @@
+To use Google Maps, you need to load the following JavaScript from Google.
+
 ```html
 <script src="http://maps.googleapis.com/maps/api/js?libraries=places"></script>
+```
+
+Here's an example usage:
+
+```html
 <div class='map-wrapper'>
   <div class='pane'>
     <div class='container pan'>

tasks/build.js

@@ -188,7 +188,7 @@ gulp.task('pui-css-variables-and-mixins', function() {
       bugs: {
         url: 'https://github.com/pivotal-cf/pivotal-ui/issues'
       }
-    }, null, 2))
+    }, null, 2), {src: true})
   ).pipe(gulp.dest('dist/variables-and-mixins'));
 });