Reorganization of threading for command line and wx main loops. Commands are now cleanly serialized through calls to wx.CallAfter. wx mainloop now runs on main thread.
<xsd:element name="Rtai">
<xsd:complexType>
%(toolchain_gcc)s
<xsd:attribute name="rtai_config" type="xsd:string" use="optional" default="/usr/realtime/"/>
</xsd:complexType>
</xsd:element>