Gpgkeys

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- Use kmd.Kmd instead of cmd.Cmd as base class.
[stefan]

- Depend on rl through the kmd dependency only.
[stefan]

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- Require rl >= 1.14.
[stefan]

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- Add '!' and '.' to shortcut commands so they show up in help.
[stefan]

- Drop Python 2.5 support in favor of faster byte string operations
in later Python versions.
[stefan]

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- Require rl >= 1.13.
[stefan]

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- Print help when required command arguments are missing.
[stefan]

- Require rl >= 1.11.
[stefan]

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- Change an import statement so 2to3 is able to resolve it.
[stefan]