gistfile1.xsl

   <extension
         id="AIRFlexProjectNature"
         point="org.eclipse.core.resources.natures">
      <runtime>
         <run class="net.sf.amateras.air.natures.AIRFlexProjectNature"/>
      </runtime>
      <builder id="net.sf.amateras.air.MXMLBuilder"/>
   </extension>

   <extension
         id="MXMLBuilder"
         point="org.eclipse.core.resources.builders">
      <builder hasNature="true">
         <run class="net.sf.amateras.air.builder.AirBuilderManager"/>
      </builder>
   </extension>