HU, IT, PT, RU entries + minor FR, SP, PL fixes.

> This is a merge of #1059, #1061 and #1023

Added Hungarian, Portuguese, Italian entries so they at least have the realistic-ish names and Russian folks have the names wrote in Cyrillic, as far as I have been able to find them on Wiki.

Please note that I'm not fluent in these language, I just assume that's at least more enjoyable than plain English.

* M2A1 Slammer looks to be a Merkava Mk 4m Windbreakern which is "a Merkava Mk IV equipped with the Trophy active protection system (APS)". http://en.wikipedia.org/wiki/Merkava#Mk_IVm_Windbreaker
As for Arabic numeral vs roman, well, I simply took a look at the Hebrew wikipedia.

* Italian entries should be good now thanks to Ricciardino.

* Spanish fixes are only obvious typo on already grammatically correct Legolasindar's fixes.
It's Yak-130.