v0.13.1: Version 0.13.1

<a name="v0.13.1"></a>
### v0.13.1 (2019-10-29)

#### Bug Fixes

*   Don't deadlock when collecting and cloning a thread concurrently ([d7368950](https://github.com/gluon-lang/gluon/commit/d7368950d9310f383cebcbaf841382181701da00))
* **doc:**  Correct the style.css path ([2cee5cff](https://github.com/gluon-lang/gluon/commit/2cee5cffab0c1df604a45e3272e92f69624e6b41))