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Fix iojs/io.js#67
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
PR-URL: https://github.com/iojs/io.js/pull/68
Update device regex starting with relative path

paths starting with relative path to another drive for example `../../d:/some/dir/` are not resolved correctly. This regex update fixes it.
Adding new test for relative path reference
Updating path parse format test for windows

`.\file` is same as `file` and should not be parsed as `.\file`
Fixing typo