Fix
* Deprecated shapely cascaded_union() ([`2dfb2a1`](https://github.com/Sieboldianus/TagMaps/commit/2dfb2a13ddc544b7cf78fffc9b7f47d4788b9678))
Documentation
* Add git revision date to pages ([`728dcd4`](https://github.com/Sieboldianus/TagMaps/commit/728dcd4fcaa17622259901b1477a8ff505889e30))
* Improve formatting and revise structure ([`c1d1cc0`](https://github.com/Sieboldianus/TagMaps/commit/c1d1cc04a97dbe49ad2cd85f12efc71db778ca89))
* Cleanup changelog ([`9ce4021`](https://github.com/Sieboldianus/TagMaps/commit/9ce40210cfe42620f1d99aaad687e37984c34f19))