Bug 449484 - Add configuration property to allow bundles to provide
osgi.ee and osgi.native capabilities
 - rename constant var to
EquinoxConfiguration.PROP_ALLOW_RESTRICTED_PROVIDES

Change-Id: I7642e8c4ca27e574d9e7e2e24f3b5f06afb0f0f3
Signed-off-by: Thomas Watson <tjwatson@us.ibm.com>