Gpgkeys

----------------

- Change license to GPL.
[stefan]

----------------

- Add --clean and --minimal import/export options to respective commands.
[stefan]

- Fix --merge-only import option of keyserver commands.
[stefan]

- Remove the --yes option again since it has no apparent effect.
[stefan]

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- Remove obsolete --secret option from the import command.
[stefan]

- Userid completion is now triggered by any kind of quoting.
[stefan]

- Allow to specifiy command line options after the argument.
[stefan]

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- Extend the quoting and dequoting API to make it more (re)usable.
[stefan]

- Dequoting didn't work right when the default quoting character
was single quote.
[stefan]

- Tildes in quoted filenames could cause quotes to be closed even
if the tilde-expanded name matched a directory.
[stefan]

----------------

- Cut down on infrastructure slack in filename completion. The
individual strategies are very small.
[stefan]

- Remove logging as it clutters up the code.
[stefan]

- Add an example session to the README.
[stefan]

----------------

- Extend keyid completion to also complete userids and names.
[stefan]

- Extract filename completion functionality into functions,
as it is useful in other places as well.
[stefan]