Ignore .ruby-version
Support for WSDL inline type definitions and type extensions

The WSDL Parser now supports things like

<element name="TradePrice">
  <complexType>
    <complexContent>
      <extension base="BaseType">
        <all>
          <element name="price" type="xs:float"/>
        </all>
      </extension>
    </complexContent>
  </complexType>
</element>

It's also possible to set a node's content via Builder using the __content__ method. Useful when you're setting attributes and content at the same time
Version bump to 0.3.0
Regenerate gemspec for version 0.3.0