Add preferences strings to Afrikaans translation
Add preferences strings to Hungarian translation
Update Report-Msgid-Bugs-To field in l10n files

Previously the Report-Msgid-Bugs-To Header Entry field was empty. I
added a link to the project's issue tracker on GitHub in all PO files
so that people can know where to go to report problems with the
untranslated strings. I also added the link to the POT file so that new
translation files created from it will have the link as well.
Update Project-Id-Version field in l10n files

Previously the Project-Id-Version field was set to "PACKAGE VERSION",
which caused msgfmt to give the warning "header field
'Project-Id-Version' still has the initial default value", so I set the
project name and version in the POT file and updated the PO files
accordingly. The German PO file actually already had its own text but I
updated it to match the others for consistency.
Recompile all MO files from updated PO l10n files.
Merge pull request #9 from sinisterstuf/master

Translation update for Afrikaans & Hungarian