Update version in README and exclude vendors in PhpUnit suite

Author: fre5h

README.md

@@ -30,7 +30,7 @@ Provides support of **ENUM type** for Doctrine in Symfony applications.
 
 ### Install via Composer
 
-```php composer.phar require fresh/doctrine-enum-bundle='v3.1'```
+```php composer.phar require fresh/doctrine-enum-bundle='v3.2'```
 
 ### Register the bundle
 

phpunit.xml.dist

@@ -24,6 +24,7 @@
             <exclude>
                 <directory>./Resources</directory>
                 <directory>./Tests</directory>
+                <directory>./vendor</directory>
             </exclude>
         </whitelist>
     </filter>