#25 [WIP] fix hierarchical tag handling and validate tag names

Sapludināts

getty sapludināja 6 revīzijas no getty/gdritter/tag-fixes uz getty/master 5 gadi atpakaļ

Autors	SHA1 Ziņojums	Datums
Getty Ritter	d6dab1d728 Be more lenient with what tag names can be	5 gadi atpakaļ
Getty Ritter	299e09b553 Automatic formatting commit: 2020-04-18T11:47:44.606778	5 gadi atpakaļ
Getty Ritter	09c37f38ba Add all hierarchical tags	5 gadi atpakaļ
Getty Ritter	6b2f10afb1 formatting	5 gadi atpakaļ
Getty Ritter	7847fb41b3 Tags can have slashes, too, as a treat	5 gadi atpakaļ
Getty Ritter	2a42bdbce2 Validate tag names as being alphanumeric	5 gadi atpakaļ