Merge pull request #464 from Ocramius/hotfix/constraint-truncation-hotfix

Packagist is truncating `PackageLink` versions.

src/Packagist/WebBundle/Entity/PackageLink.php

@@ -33,7 +33,7 @@ abstract class PackageLink
     private $packageName;
 
     /**
-     * @ORM\Column()
+     * @ORM\Column(type="text")
      */
     private $packageVersion;