latest localisations from transifex
Use ZW-Hant and ZW-Hans for Chinese localisations

As opposed to using the more specific regional language identifiers, which the OS doesn't seem to be able to pick up
remove duplicate keys from localizable.strings
turn off the noIdentifier flag when setting a new identifier
Merge pull request #1403 from skurfer/identFix

small identifier bug
mention #1403 in the release notes
bump build number to 3947
don't offer obsolete plug-ins for installation
Merge pull request #1404 from skurfer/hideObsoletes

Hide obsoletes
Merge branch 'release-1.0'