Little refactoring, separate tweet parse function. Planning to cover those fucntions with test because my submission fails
Playinh with lower/upper case stting, so that results are different. However there is no effect on submission , still got too big sentiment score
Starter code as well as recomended literarute
 Do not need to track compiled files
Fixed a typo in parse text function
planing to reuse the data and module developed for previous problem