Small change to TZID

From: Mike Douglass <douglm@rpi.edu>
To: "ws-calendar@lists.oasis-open.org" <ws-calendar@lists.oasis-open.org>
Date: Wed, 13 Jul 2011 11:35:37 -0400

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I realized I'd not dealt with the problem of TZID which occurs as a
parameter and a property.

This necessitates a small change to iCalendar-props.xsd from

<xs:complexType name="ArrayOfProperties">
<xs:sequence>
<xs:element ref="xcal:baseProperty" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>

to

<xs:complexType name="ArrayOfProperties">
<xs:sequence>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element ref="xcal:baseProperty"/>
<xs:element name="tzid" type="xcal:TextPropertyType"/>
</xs:choice>
</xs:sequence>
</xs:complexType>

This seems to work fine but I need to do some more testing.