[ReCaptcha] added a way for automated testing (issue #215)
added some docs about captcha static code
added documentation
Merge branch 'recaptcha_automated_testing' of github.com:vdroznik/GenemuFormBundle into 2.1
added some tests to Recaptcha static code
Merge branch 'master' into 2.1

Conflicts:
	Form/Core/Validator/ReCaptchaValidator.php