Merge pull request #574 from Mkaysi/l10n-fi

l10n-fi: update the rest of the plugins...
PluginDownloader: update l10n-fi.

The typo fix edition.
Merge branch 'testing' of github.com:ProgVal/Limnoria into l10n-fi
Merge pull request #575 from Mkaysi/l10n-fi

PluginDownloader: fix l10n-fi after merged typo-fix.
MessageParser: Fix crash if not all matches are used in the replacement.
User: Fix checking of GPG availabiliy and add @gpg list command.
User: Fix authentication canceling after hostname/nick change.