Move Over Bitcoin, These 4 Cryptocurrencies are Making Their Mark   Just a few years ago if you thought of cryptocurrency you thought of Bitcoin and Bitcoin only. Bitcoin was propelled into the limelight back in 2013. Around that time The Silk Road was taken down and the U.S. government confiscated hundreds of millions of dollars worth of Bitcoin. Back then, cryptocurrency and Bitcoin was more of an underground thing used mostly for dodgy purposes. But today, the tech and…