Folder name as argv parameter
Solved utf-8 related issues

        UnicodeDecodeError: 'ascii' codec can't decode byte 0xe6 in
        position 3: ordinal not in range(128)
Added sorting to filelist via sorted() function

        For correct order in this case:
        01_1.mp3
        01_2.mp3
        02_1.mp3

        I suppose, have any order better then don't have one.
Merge branch 'sorted_files'

* sorted_files:
  Added sorting to filelist via sorted() function
Set ip-to-bind via command line arg

            -i/--ip=8.8.8.8