Commit
2209d492f409737d2737f896a3f9ba719e1e886c
by luissalgadoblancotk29- Fixes in explore and FindStoryById in REST
Changed findStoryByText and explore functions in REST so they could work
in the same route (/microstory?params). Added test to check invalid ID
in function getStoryByID. The StoryDataset class has been modified so
that the selection of the the text values were managed by this class.