* new/project.jam (lookup): Bugfixes. (find-target): Attempt to load
project specified by project id.
Project module rules:
project: Allow empty id.
use-project: New rule.
* new/targets.jam: (basic-target.generate-source): Correct a bug in
separating target id from extra properties.
[SVN r14341]
* new/os.path.jam (join-imp): Bugfixes. (all-parents): Simplified.
(glob-in-parents): New rule.
* new/project-root.jam (load): Use 'glob-in-parent' instread of
'find-to-root', so that "project-root.load ." always work.
* new/project.jam (find-jamfile): Make use of the 'glob-in-parents'
rule.
[SVN r14339]
* new/targets.jam: Check for duplicate 'basic-target::generate()' calls.
Use better logic to tell is source is another main target or file.
(project-target::has-main-target): New rule.
* new/project.jam (lookup): Fixes. (find-target): Implemented.
* new/make.jam: New file, defines the 'make' rule and associated target
class.
* new/build-system.jam: Import 'make'. Generate virtual targets and
actualize them.
* new/utility.jam: Added "MkDir" rule and actions.
* test/project_test3.py: New test.
[SVN r14249]
* 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]
* 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]
