Allow changes to manifest (from .repo/manifests)

[GoogleCodeExporter]

From the .repo/manifests project, none of the "repo start", "repo upload" 
commands work since the project is not recognized. This would allow engineers 
to upload changes to manifests for review.

Example of how repo start doesn't work:
$ repo start blah .
error: project . not found

Original issue reported on code.google.com by sop@google.com on 31 Aug 2010 at 5:14

[GoogleCodeExporter]

It can be solved by adding the manifest repo to the manifest itself, thus 
storing it twice in the repo structure, both as a manifest and as a project. 
Admittedly a very ugly workaround, it still solves the problem.

Original comment by fredrik....@sonyericsson.com on 6 Sep 2010 at 3:17