OHAI-491: Implement root_group provider for Windows
Windows root_group tests
Generalize root group test to handle localization, admin group rename
Stub constant in unit spec to enable Windows code path
OHAI-491 Documentation update
Remove emacs autosave file
Include util in the correct class
Remove repetition of ffi imports, unnecessary empty module
CR feedback: simplify conditional test of Win32 api return value
.gitignore emacs autosave protection
Use platform-specific gemspec to conform to static evaluation of gemspecs
Fix inaccurate usage of FFI::MemoryPointer
Use correct pointer type instead of integer with FFI
Remove extraneous mixin pattern
Ensure allocated memory is freed in error conditions
Update deprecated rspec usage
Use Unix instead of DOS line endings
Fix Ruby 1.8.7 break caused by class reloading and preventing stub
Back to one gemspec since FFI will be needed on all platforms soon anyway
Merge pull request #341 from opscode/adamed/ohai-491

OHAI-491: Implement root_group for Windows