refs #803

Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>

Pierre Mazière authored Apr 07, 2014 and Romain Bignon committed Apr 07, 2014

for now only pls and m3u playlists are supported

Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>

Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>

Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>

Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>

Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>

Signed-off-by: Thomas Lecavelier <thomas-weboob@lecavelier.name>

closes #1139

autopep8 -i --select=W602
Also some other minor deprecated syntax changes, like "while 1".
I did not commit the less obvious changes.

This is recommended by Debian.
closes #618

* Remove callbacks in Collection object
  Make Collection a "dumb" object (and also a base object,
  though it isn't very useful for now)
* Rename Path to WorkingPath, because it is more about managing state
  than being a single path.
* Rewrite almost all WorkingPath, because the code was overly
  complicated for no reason (I tried some special cases and it turned
  out that fromstring didn't handle them, and that the
  quote-escape-unquote was just unecessary). I also rewrote it to be
  more pythonic (no more lambdas and maps) and added tests.
* Require the full split path when creating a Collection. Because, come to
  think of it, an object needs an unique identifier; in the case of
  Collections, it is the full path, not only its last part.
  I might even replace the id by the full split path in the future.
* There is now only one way to get items of a Collection: calling
  iter_resources().
* Rewrite flatten_resources to iter_resources_flat(), which just calls
  iter_resources() recursively.
* Rewrite the collection part of the canalplus module. There is no more
  callback or a page calling the browser to check another page!
  The logic is only in iter_resources().
  The resulting code is not very pretty, but it should get better.
  As a bonus, avoid to reload the main XML file when we already have it
  open.
* change_path() now expects a split path and not a string.
* up/home special cases for "cd" are handled in the same place, and
  store the previous place properly (but are not yet exploitable by
  an user command).

This is a big commit but it would be hard to split it in *working*
commits.

If you read this entire commit message, I will buy you a beer.

refs #774
fixes #773