BUG: fix writing egg-info content on windows.
BUG: fix egginst test suite on win32.
BUG: skip tests that don't make sense on windows.
BUG: more win32 test failures in utils/main.
BUG: label windows-specific failure as skipped, not expected failure.
BUG: fix skipIf usage.
BUG: fix py27-ism.
Merge pull request #166 from enthought/fix_win32_failures

Fix win32 failures