Enable more eslint-plugin-react rules

This should contain all the rules we probably want to use, except
react/wrap-multilines, which requires a larger codemod, and would
clutter this commit.

.eslintrc

@@ -71,8 +71,29 @@ rules:
   block-scoped-var: 0
 
   # JSX
+  # Our transforms set this automatically
+  react/display-name: 0
+  react/jsx-boolean-value: [2, always]
+  react/jsx-no-undef: 2
+  react/jsx-quotes: [2, double]
+  # We don't care to do this
+  react/jsx-sort-prop-types: 0
+  react/jsx-sort-props: 0
   react/jsx-uses-react: 2
-  react/jsx-quotes: [2, "double"]
+  react/jsx-uses-vars: 2
+  # It's easier to test some things this way
+  react/no-did-mount-set-state: 0
+  react/no-did-update-set-state: 0
+  # We define multiple components in test files
+  react/no-multi-comp: 0
+  react/no-unknown-property: 2
+  # This isn't useful in our test code
+  react/prop-types: 0
+  react/react-in-jsx-scope: 2
+  react/self-closing-comp: 2
+  # We don't care to do this
+  react/sort-comp: 0
+  #react/wrap-multilines: 2
 
   # CUSTOM RULES
   # the second argument of warning/invariant should be a literal string

docs/_js/examples/.eslintrc

@@ -1,3 +1,6 @@
+---
 rules:
-  block-scoped-var: false
-  no-undef: false
+  block-scoped-var: 0
+  no-undef: 0
+  react/react-in-jsx-scope: 0
+  react/jsx-no-undef: 0

src/addons/transitions/__tests__/ReactCSSTransitionGroup-test.js

@@ -117,8 +117,7 @@ describe('ReactCSSTransitionGroup', function() {
 
   it('should work with no children', function() {
     React.render(
-      <ReactCSSTransitionGroup transitionName="yolo">
-      </ReactCSSTransitionGroup>,
+      <ReactCSSTransitionGroup transitionName="yolo" />,
       container
     );
   });

src/renderers/dom/shared/__tests__/ReactDOMComponent-test.js

@@ -663,7 +663,7 @@ describe('ReactDOMComponent', function() {
     it('should warn about contentEditable and children', function() {
       spyOn(console, 'error');
       React.render(
-        <div contentEditable><div /></div>,
+        <div contentEditable={true}><div /></div>,
         container
       );
       expect(console.error.argsForCall.length).toBe(1);