circus
org.eclipse.ui.externaltools.ExternalToolBuilder
full,incremental,
LaunchConfigHandle
<project>/.externalToolBuilders/net.sourceforge.texlipse.builder.TexlipseBuilder.launch
org.eclipse.jdt.core.javabuilder
net.sourceforge.texlipse.builder.TexlipseNature
org.eclipse.jdt.core.javanature