Fixing comment 3 and 4 by @nathany. about the next() method, DNA letters etc
Fixing comment 3 and 4 by @nathany. about the next() method, DNA letters etc

raphael/gopheracademy-web,mem/gopheracademy-web,spf13/gopheracademy-web,spf13/gopheracademy-web,mem/gopheracademy-web,raphael/gopheracademy-web