replace string restriction with xs:boolean in csv-options.xsd

[Cezar Andrei]

csv-options.xsd contains these attribute definitions:

    <attribute name="ignore-foreign-input" default="false">
      <simpleType>
        <restriction base="string">
          <pattern value="true|false"/>
        </restriction>
      </simpleType>
    </attribute>
    <attribute name="accept-all-lines" default="false">
      <simpleType>
        <restriction base="string">
          <pattern value="true|false"/>
        </restriction>
      </simpleType>
    </attribute>

What is the reason it was defined using a string restriction and not xs:boolean?

Like this:

    <attribute name="ignore-foreign-input" type="xs:boolean" default="false"/>
    <attribute name="accept-all-lines" type="xs:boolean" default="false"/>

[Cezar Andrei (cezar-andrei)]

Not 100% backwards compatible in the schema sense but previous instances should still be valid.