Codec
Common codecs
First commit for feed.py
basic functions to feed list
fix function args, add test codes
fix docstring for valid Sphinx syntax
add feed.rst
change data type, adjust code. and remove `__repr__` function
now feed.py can read OPML file.
add test function for feed.py, add file notfound exception
change variable name use underscore
class `feed` is able to working with XML string
adjust coding style pep8
feed.py can read attribute of outline
simplify get_feed function
change method for check text type
add __iter__, __getattr__, __setattr__ to Feed
change class name `Feed` to `Feeds`
change class name, remove __setattr__ and __getattr__ function
fix some methods with latest schema.py
added some field on outline Element
`FeedList` supports Tree category