Tidy now supports Leo preferences:
- Added c argument (main sets it to None) to tidy_up.
- tidy_up calls set_args if c exists.
- Added the following settings to leoSettings.leo in @settings-->Command options-->Beautify command settings
    @bool tidy_add_blank_lines_around_comments =True
    @bool tidy_double_quoted_strings = False
    @bool tidy_keep_blank_lines = True
    @bool tidy_left_adjust_docstrings = False
    @int  tidy_lines_before_split_lit = 2
    @int  tidy_seps_before_split_line = 8

Leo build: 20141010103642