add linting and fix cs on config test

Author: wzrdtales

package.json

@@ -79,6 +79,7 @@
     "sinon": "^4.1.2"
   },
   "scripts": {
+    "pretest": "eslint *.js lib/*.js test/*.js bin/*",
     "test": "make test-cov"
   }
 }

test/config_test.js

@@ -137,7 +137,7 @@ lab.experiment('config', function () {
           Code.expect(current.settings.driver).to.equal('postgres');
           Code.expect(current.settings.user).to.equal('uname');
           Code.expect(current.settings.password).to.equal('pw');
-          Code.expect(current.settings.host ).to.equal('server.com');
+          Code.expect(current.settings.host).to.equal('server.com');
           Code.expect(current.settings.database).to.equal('dbname');
           done();
         }