upgrade eslint-config-airbnb and eslint-config-airbnb-base to latest versions

[nagkumar]

We are seeing this issue while working with latest react.

npm WARN [email protected] requires a peer of eslint@^2.9.0 but none was installed.
npm WARN [email protected] requires a peer of eslint-plugin-jsx-a11y@^1.2.0 but none was installed.
npm WARN [email protected] requires a peer of eslint@^2.9.0 but none was installed.

Can you pl. upgrade these to work with

"eslint": "3.1.1",
"eslint-plugin-import": "^1.11.0",
"eslint-plugin-react": "^5.2.2",

[ljharb]

Duplicate of #936.