Kodiswift

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- Set `listitem.is_folder` to `False` when setting `listitem.is_playable` to `True`.

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- Made `listitem.playable` use it's own property to allow `is_folder` and `playable` to be independent

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- Make sure list item has 'as_tuple' method

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- Add xbmcvfs mock
- Added listdir to xbmcvfs
- Exclude tests from distribute package
- Fix issue when path sets as icon for listitem object
- Add test for plugin.set_resolved_url()
- Add check of played
- set_resolved_url test check playable
- Improve mock of xbmc, to use xbmc libraries addons in python path
- Fixed failing TestResolvedUrl test

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- Merge pull request 6 More robust test before manipulation of item
- Merge pull request 8 Fix notify

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- Merge pull request 5 fix storage error on Windows