Enhancements for project.lookup.

    * new/project.jam (lookup): Require second argument, which specifies
        directory, relative to which paths in id should be interpreted.
    * test/project-test1.jam: Test for the above change.


[SVN r13636]

tools/build

@@ -1 +1 @@
-Subproject commit c02f544d2b258655e5e38a7375d02eb605ef0f99
+Subproject commit dcbba6908ba79bf4c37d92489a21e3b577e53191