Changelog for purple-mattermost-1.1-4.20170805git4524538.fc27.x86_64.rpm :

* Mon Aug 28 2017 Ben Rosser - 1.1-4.20170805git4524538- License is actually GPLv3+, not GPLv3, fix tag.- Simplify github sourceurls.
* Thu Aug 10 2017 Ben Rosser - 1.1-3.20170805git4524538- Updated to a recent git snapshot in order to support gitlab workaround.
* Thu Aug 10 2017 Ben Rosser - 1.1-2- Adapted packaging, made Fedora-compliant.
* Wed May 31 2017 Jaroslaw Polok - 1.1-1- Initial packaging.