* new/project-root.jam (load): Really produce an error message when
project root file is not found.
* test/project_test3.py: Test for the error reporting.
[SVN r14280]
* 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]
* os.path.jam (basename, pwd, glob): New rules. Changed naming convention
for many other rules.
* project-root.jam: Use os.path everywhere.
* project.jam: Don't convert project paths to absolute paths. Use os.path.
* build-system.jam: Don't use absolute name when loading jamfile.
[SVN r13634]
