add taskbaricon to beremiz_service.
fix bug in dicovery.py
Write class for ServicePublisher
<xsd:element name="Xenomai">
<xsd:complexType>
%(toolchain_gcc)s
<xsd:attribute name="xeno_config" type="xsd:string" use="optional" default="/usr/xenomai/"/>
</xsd:complexType>
</xsd:element>