assets/est.xsd in est-0.2.1 vs assets/est.xsd in est-0.3

@@ -31,10 +31,10 @@
   </xs:complexType>
   <xs:element name="estimate">
     <xs:complexType>
       <xs:all>
         <xs:element name="total" type="xs:int"/>
-        <xs:element name="ests">
+        <xs:element name="ests" minOccurs="0">
           <xs:complexType>
             <xs:sequence>
               <xs:element name="est" type="est" minOccurs="1" maxOccurs="unbounded" />
             </xs:sequence>
           </xs:complexType>