* new/targets.jam: Considerably changed.
* new/project.jam: Projects now return project targets via 'target' rule.
Requirements are inherited. Renames 'subinclude(s)' to 'subproject(s)'.
(find-jamfile): Rewritten, which fixes some bugs.
* new/project-root/jam: (print): Sort projects first by they id, which
makes order more predictable.
* test/project-test1.py: Also run test from the 'project-test1' dir.
* test/project-test2.py: New test.
[SVN r13681]
* 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]
