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Various fixes and behavior changes.
* Fix bumpversion configuration.
* Add possibility to give grid as argument to super get.
* Change persistent to false (unpredictable behavior with cache?).
* Fix changing URL for refreshable items.
* Update docs, decorator now supports args or not, fix case when multiple series in template.
* Allow lazy initialization for boxes (or not).
* Change Box behavior, improve refreshable decorator, implement JSON refresh in box template.
* Fix URLs in README.
* Configure isort to understand django apps, fix imports order.
* Add refreshable data view and decorator and display.
* Fix inconsistent title error.
* Remove BSD2 link from README.
* Display item names only if they exist.
* Change context to kwargs, add context as argument.
* Fix issue 4.
* Fix overwriting default value if variable's parent was defined. Also log exceptions in console.
* Add id for each item in table.
* Move element title inside 'group' condition.
* Fix issue 1.