Creates a link to the upload page. See [WikiAttachments].
Why would you use this instead of a standard anchor? The UploadLinkTag automatically adds things like the correct class information (for styles), the jspwiki.baseURL property, attachment links, etc.
----
!Usage
<wiki:UploadLink page="<page name>" format="anchor|url">
;:''Link text''
</wiki:UploadLink>
!Parameters
;__page__: Page name to link to. If not set, uses the current page.
;__format__: If "anchor", creates the full hyperlink (<a href="...">link text</a>); if "url", outputs only the URL.
!Example
{{{
<wiki:UploadLink>Upload a new attachment</wiki:UploadLink>.
}}}