Updated the MANIFEST file.

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Signed-off-by: Yorick Peterse <yorickpeterse@gmail.com>
Updated the docs on configuring ruby-lint.

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Signed-off-by: Yorick Peterse <yorickpeterse@gmail.com>
Updated the README.

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Signed-off-by: Yorick Peterse <yorickpeterse@gmail.com>