feat(lint): add eslint to test setup

.eslintrc

@@ -0,0 +1,3 @@
+{
+  "extends": "react-app"
+}

.travis.yml

@@ -7,6 +7,7 @@ cache:
 before_script:
 - chmod +x scripts/docs-ci
 script:
+- npm run lint
 - npm test -- --coverage
 after_success:
 - scripts/docs-ci

package.json

@@ -12,6 +12,7 @@
     "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test --env=jsdom",
+    "lint": "eslint src",
     "prebuild": "babel src/components --out-dir lib --ignore test.js",
     "create-release-branch": "sh ./scripts/create-release-branch",
     "publish-release": "sh ./scripts/publish-release",
@@ -29,6 +30,7 @@
     "conventional-recommended-bump": "^0.3.0",
     "dentist": "^1.0.3",
     "enzyme": "^2.4.1",
+    "eslint": "^3.8.1",
     "history": "^4.2.0",
     "react": "^15.3.2",
     "react-addons-test-utils": "^15.3.2",

src/docs/layout/Nav.js

@@ -1,6 +1,6 @@
 import React from 'react';
 import { Link } from 'react-router';
-import { Container, Collapse, Navbar, NavbarToggler, NavbarBrand, Nav, NavItem, NavLink } from 'reactstrap';
+import { Collapse, Navbar, NavbarToggler, NavbarBrand, Nav, NavItem, NavLink } from 'reactstrap';
 
 class LayoutNav extends React.Component {
   constructor(props) {

yarn.lock

@@ -2377,7 +2377,7 @@ [email protected]:
     doctrine "^1.2.2"
     jsx-ast-utils "^1.3.1"
 
-[email protected]:
+[email protected], eslint@^3.8.1:
   version "3.8.1"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-3.8.1.tgz#7d02db44cd5aaf4fa7aa489e1f083baa454342ba"
   dependencies: