merged branch igorw/composer-classloader (PR #225)

Commits
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006d7ba4 add symfony/class-loader to composer.json

Discussion
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add symfony/class-loader to composer.json

composer.json

@@ -20,6 +20,7 @@
         "php": ">=5.3.2",
         "pimple/pimple": ">=1.0.0-dev",
         "symfony/browser-kit": "2.1.*",
+        "symfony/class-loader": "2.1.*",
         "symfony/css-selector": "2.1.*",
         "symfony/dom-crawler": "2.1.*",
         "symfony/event-dispatcher": "2.1.*",