Merge pull request eslint#3160 from eslint/issue3156

Fix: Make Chai as a dependency (fixes eslint#3156)

package.json

@@ -35,6 +35,7 @@
   "homepage": "http://eslint.org",
   "bugs": "https://github.com/eslint/eslint/issues/",
   "dependencies": {
+    "chai": "^1.9.1",
     "chalk": "^1.0.0",
     "concat-stream": "^1.4.6",
     "debug": "^2.1.1",
@@ -53,6 +54,7 @@
     "lodash.omit": "^3.1.0",
     "minimatch": "^2.0.1",
     "mkdirp": "^0.5.0",
+    "mocha": "^2.1.0",
     "object-assign": "^2.0.0",
     "optionator": "^0.5.0",
     "path-is-absolute": "^1.0.0",
@@ -66,7 +68,6 @@
     "beefy": "^1.0.0",
     "brfs": "0.0.9",
     "browserify": "^8.1.3",
-    "chai": "^1.9.1",
     "coveralls": "2.11.2",
     "dateformat": "^1.0.8",
     "eslint-tester": "^0.8.1",
@@ -77,7 +78,6 @@
     "jsdoc": "^3.3.0-beta1",
     "jsonlint": "^1.6.2",
     "markdownlint": "^0.0.6",
-    "mocha": "^2.1.0",
     "mocha-phantomjs": "3.6.0",
     "npm-license": "^0.2.3",
     "phantomjs": "1.9.7-15",