Fix lint issues and use single .eslintrc

This fixes a few lint issues and also uses a single `.eslintrc` to prevent
duplication and divergence of lint rules.

.eslintignore

@@ -1,7 +1,7 @@
 dist/
 docs/
-examples/
-node_modules/
+**/node_modules/
+examples/**/updateSchema.js
 lib/
 scripts/
 # TODO: Enable ESLint for website.

.eslintrc

@@ -7,6 +7,9 @@ extends:
 plugins:
   - react
 
+rules:
+  react/jsx-uses-react: 2
+
 globals:
   $Enum: true
   $FixMe: true

examples/relay-treasurehunt/data/schema.js

@@ -53,7 +53,7 @@ var {nodeInterface, nodeField} = nodeDefinitions(
   (obj) => {
     if (obj instanceof Game) {
       return gameType;
-    } else if (obj instanceof HidingSpot)  {
+    } else if (obj instanceof HidingSpot) {
       return hidingSpotType;
     } else {
       return null;

examples/relay-treasurehunt/scripts/updateSchema.js

@@ -14,7 +14,7 @@
 import fs from 'fs';
 import path from 'path';
 import { schema } from '../data/schema';
-import { graphql }  from 'graphql';
+import { graphql } from 'graphql';
 import { introspectionQuery, printSchema } from 'graphql/utilities';
 
 // Save JSON of full schema introspection for Babel Relay Plugin to use

src/container/RelayContainer.js

@@ -576,7 +576,7 @@ function createContainerComponent(
           componentName
         );
         if (!propValue) {
-          fragmentPointers[fragmentName] = null;;
+          fragmentPointers[fragmentName] = null;
           return;
         }
         var fragment = getFragment(fragmentName, route, variables);