Merge pull request #87 from ankurankan/dev

add __name__ == __main__
Merge pull request #88 from ankurankan/dev

removed redundant line
Merge pull request #89 from ankurankan/dev

Minor Changes
Revert "add requirement for numpy"

This reverts commit ec0951bcb36546297768c3c5a957cad4163b61d7.