Indiegogo co-founder and CEO Slava Rubin took the stage today at TechCrunch Disrupt Europe 2013, and he shared some interesting stats about the crowdfunding platform’s progress to date, and he specifically addressed some of the company’s international growth. Over the past year, Indiegogo has managed to expand its business 300 percent in Europe over the past year, and international funding now accounts for a full 30 percent of its platform activity.