bar is a feature with 3 files:
b.txt
build.properties
feature.xml

bar has 1 required capability coming from the build.properties "root.permissions.755=eclipse"
bar has 3 provided capabilities: 
"org.eclipse.equinox.p2.iu/bar.feature.jar/1.1.1",
 "org.eclipse.equinox.p2.eclipse.type/feature/1.0.0", 
 "org.eclipse.update.feature/bar/1.1.1"
 
TODO:
1bar needs install handlers
2version testing
3os: macosx win32
windows system: carbon, win32
languages: en
arch: ppc, x86

Note:
1
if (extraProperties != null) {
			Enumeration e = extraProperties.propertyNames();
			while (e.hasMoreElements()) {
				String name = (String) e.nextElement();
				iu.setProperty(name, extraProperties.getProperty(name));
			}
is currently dead code because the 2 callers (RemoteFeaturesAction and FeaturesAction) use extraProperties=null.

2updatesite when inspecting the LocalMetadataRepository the reference sites are stored but not read.
