tags function has been rewritten and renamed
Added docstring for tags_list function
Change limit default value
Change documentation
Added new function tags_related
Added docstring for tags_related
move version, author and description to __init__ file
Added relative imports
Change docstring of resources module
Move PybooruError class to exceptions.py
Added docstring for pybooru module
Added docstring to exceptions module
Change __init__ imports
artists function has been rewritten and renamed
Removed older code
comments  function has been rewritten and renamed