Merge branch 'master' of git://github.com/git-l10n/git-po

* 'master' of git://github.com/git-l10n/git-po: l10n: bg: Updated Bulgarian translation (2913t+0f+0u) l10n: fixes to Catalan translation l10n: zh_CN: review for git v2.11.0 l10n l10n: New Catalan translation maintainer