(refactor) remove the unique property on tour.title
Merge pull request #60 from nrobeR/refactor/tour

(refactor) remove the unique property on tour.title
(cleanup) removes hard tabs from indentation; adds EOF newlines
(cleanup) clean up the unused code in spot folder
Merge pull request #61 from loqi/master

(cleanup) removes hard tabs from indentation; adds EOF newlines
Merge pull request #63 from nrobeR/cleanup/rmspot

(cleanup) clean up the unused code in spot folder