Reconfigured database username

Seems @travis-ci did make some changes as per their blog. Updated code to use
the username `root` for connections instead of no user.

.travis.yml

@@ -33,8 +33,8 @@ before_script:
   - echo "[uopz]" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
   - echo "uopz.overloads=1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
   - cat ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
-  - mysql -e 'create database test;'
-  - mysql test < tests/schema.sql
+  - mysql -e "create database IF NOT EXISTS test;" -u root
+  - mysql test < tests/schema.sql -u root
   - mkdir -p build/logs
 
 script:

tests/classes/DatabaseTest.php

@@ -59,7 +59,7 @@ class DatabaseTest extends PHPUnit_Framework_TestCase
 				'type'     => 'mysql',
 				'driver'   => 'pdo_mysql',
 				'hostname' => 'localhost',
-				'username' => '',
+				'username' => 'root',
 				'password' => '',
 				'database' => 'test',
 			],