Some property functions.

    * property.jam (refine-properties): New rule.
    * feature.jam: New feature attribute 'link-incompatible'.
    * test.jam: Test the property module.


[SVN r13640]

tools/build

@@ -1 +1 @@
-Subproject commit ee5fa7e874b8f0d5cfecf46c9e1304327ccef565
+Subproject commit a23569966089e58076e03aeb4ebd1ddb4b0d4487