Function: to_text

--Usage--
> to_text(some_tagged_text)

Convert a [[type:tagged string]] to a normal string by removing all tags and restoring escaped < characters.


--Parameters--
! Parameter	Type				Description
| @input@	[[type:tagged string]]		String to convert to text

--Examples--
> to_text("<b>bold text</b>") == "bold text"
> to_text("1 \< 2") == "1 < 2"

--See also--
| [[fun:to_html]]		Convert [[type:tagged text]] to html.
| [[fun:remove_tags]]		Remove all tags from tagged text.