Merged revisions 66707,66775,66782 via svnmerge from

Merged revisions 66707,66775,66782 via svnmerge from
svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

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  r66707 | benjamin.peterson | 2008-09-30 18:27:10 -0500 (Tue, 30 Sep 2008) | 1 line

  fix #4001: fix_imports didn't check for __init__.py before converting to relative imports
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  r66775 | collin.winter | 2008-10-03 12:08:26 -0500 (Fri, 03 Oct 2008) | 4 lines

  Add an alternative iterative pattern matching system that, while slower, correctly parses files that cause the faster recursive pattern matcher to fail with a recursion error. lib2to3 falls back to the iterative matcher if the recursive one fails.

  Fixes http://bugs.python.org/issue2532. Thanks to Nick Edds.
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  r66782 | benjamin.peterson | 2008-10-03 17:51:36 -0500 (Fri, 03 Oct 2008) | 1 line

  add Victor Stinner's fixer for os.getcwdu -> os.getcwd #4023
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