3.3: Fix_module_repr to match PEP 420 and fix reload_builtin

Merged Bitbucket Importer requested to merge bitbucket/merged-pr-404 into branch/py3.3

Created originally on Bitbucket by marky1991 (Mark Young)

Was already merged in Bitbucket before import, marked as merged by the import user

  • If the module is already in sys.modules, it must be a reload, so just initialize the existing module instance and return it. (Fixes test_reload_builtin)

  • Translation still not fixed. Committing so I can ask about the problem.

  • Fix translation.

  • Fix module repr as per PEP 420.

  • Add a comment and fix an unintended change in the comment.

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