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* Allow the construction of re-usable Noterators with the ``Noterator`` class
* Configuration is now possible without a config file (``instance.configure_plugin``)
* Plugin validation is now triggred when iteration begins, not when the Noterator is built
* Changed email plugin configuration keys to be consistent with, e.g. Django
* Added tests for configuration file validation & all plugins
* Travis CI + coverage / Coveralls integration