Tweak resumptionToken tag. (#1)

* Always output the resumptionToken tag.

This adds again the resumptionToken if we have a complete list without a
token itself. This is not a must feature but quite common and I think
it's not forbidden.

This changes the XSLT stylesheet a bit because we output the "cursor" in
the bottom which is not the amount of submitted records but the position
in the list of records.

Just another extample of a complete list:

https://www.tib.eu/oai/public/repository/open?verb=ListIdentifiers&metadataPrefix=oai_dc&set=zbmql

* Revert "Always output the resumptionToken tag."

Convinced. I should return an empty resumptionToken tag even if it is
not forbidden.

This reverts commit 079265aa1a187da119c439cd70ea705bc3458ae5.

* Change missleading label

Resources/Public/Stylesheets/OaiPmh.xsl

@@ -381,7 +381,7 @@ p.intro {
         <p>There are more results.</p>
     </xsl:if>
     <table class="values">
-        <tr><td class="key">Submitted Records</td>
+        <tr><td class="key">Cursor</td>
         <td class="value"><xsl:value-of select="@cursor"/></td></tr>
         <tr><td class="key">Total Records</td>
         <td class="value"><xsl:value-of select="@completeListSize"/></td></tr>