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Features
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- towncrier now supports reading ``__version__`` attributes that are
tuples of numbers (e.g. (15, 4, 0)). (3)
- towncrier now has support for testing via Tox and each commit is now
ran on Travis CI. (6)
Bugfixes
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- towncrier now defaults to the current working directory for the
package_dir settings variable. (2)