rel-tag-parsing

parsing rel-tag

Intstructions for how to parse rel-tag data.

test cases

url	tagspace	tag
http://example.com/tag/foo	http://example.com/tag/	foo
http://example.com/tag/tech?tag=fish#emu	http://example.com/tag/	tech
http://example.com/tag/Technology/	http://example.com/tag/	Technology