Msaf

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* Fixed bug of selecting framesync features
* OLDA and Scluster hierarchies are consistent now (first element in hierarchy in the highest in both algorithms; this was also true for Scluster before this fix)
* Warning message is displayed if jams file exists but can't be read during features computation
* If two algorithms used at the same time have the same name, and AssertionError is raised
* Fixed normalization problem: now algorithms have independent normalization parameters
* Adding `out_file` variable in main process function of the eval module
* Reporting proper weighted F-measure for the perceptual Hit Rate
* Fixed bug of annotator id not correctly passed to hierarchical evaluation function
* More unit tests
* Added script to upload to Pypi

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* Adapting code to librosa 0.5
* Improved coveralls (starting testing plots)
* Allowing computation of label algorithms for each layer of hierarchical boundaries
* Removed old notebooks that were either useless or belonged to `msaf-data`
* Removed old `ds-name` references, improving code health

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* Fixed plotting issues
* Fixed bug regarding old variable `ds_name`

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* New features: Tempogram
* Added proper configuration module (à la Theano)
* Added coveralls
* More thorough unit testing
* Proper documentation in Sphinx
* Features code more modular: easier to manage and to include new features
* Fixed a bunch of bugs

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* Initial release