add helper method to generate random story to show on homepage
add helper method to generate random story to show on homepage

SputterPuttRedux/storyvine_clone,pearlshin/StoryVine,pearlshin/StoryVine,SputterPuttRedux/storyvine_clone,SputterPuttRedux/storyvine_clone,pearlshin/StoryVine,mxngyn/StoryVine,mxngyn/StoryVine,mxngyn/StoryVine