update-po

Hi,

I just ran "update-po", and got 4 new messages...

msgid "Current Branch:"
msgstr ""

msgid "Staged Changes (Will Be Committed)"
msgstr ""

msgid "Unstaged Changes (Will Not Be Committed)"
msgstr ""

msgid "Add Existing"
msgstr ""

Actually, the 1st and the fourth copied the translation from somewhere 
else for ja and zh_cn.

Could you please pull from repo.or.cz and fill in these translations?

Thanks,
Dscho