[i18n] Updated Hungarian translations

[Andras Galos]

Hi,

Please find the Hungarian translation package for Horde's FRAMEWORK_5_1
branch:
http://www.netinform.hu/tmp/horde-po-FRAMEWORK_5_1-hu-140509-160204.tgz

I talked to the previous translator of the Hungarian version, and agreed
that I'll continue translating the packages as they haven't had enough
time to do it for a long time.

Best regards,
Andras Galos