Started refactor of story generation javascript
Removed old sentence.js files
Fixed sentence rendering

- Corrected of by 1 errors in range calculation
- Removed conflicting stories.js.coffee file
- Corrected update ajax to use sentence.update method
removed unnecessary routes and Sentences#new action
Sentence saving and updating fixed
Made sentence cue appear on initial render
Merge pull request #27 from apesic/js-refactor

JS refactor - sentence rendering, creating, updating working