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* Add an optional `alt` argument to wrapAtom [12](https://github.com/unt-libraries/codalib/issues/12).
* Add an optional `alt_type` argument to wrapAtom [12](https://github.com/unt-libraries/codalib/issues/12).
* Don't write empty `<start/>` and `<end/>` tags in QueueXML. [9](https://github.com/unt-libraries/codalib/issues/9).
* Use `xs:dateTime` compatible date strings for `lastChecked` elements in bag xml. [7](https://github.com/unt-libraries/codalib/issues/7).
* Update requirements for simpler environment prep.
* Better error handling for ANVL parsing [3](http://github.com/unt-libraries/codalib/issues/3)
* Validation for PREMIS Event XML tests