Fixed decimal units and minor punctuation and capitalization problems in hu.yml

Fixed decimal units and minor punctuation and capitalization problems in hu.yml in order to make it grammatically correct.

See (links in Hungarian):
- http://hu.wikisource.org/wiki/A_magyar_helyes%C3%ADr%C3%A1s_szab%C3%A1lyai/A_r%C3%B6vid%C3%ADt%C3%A9sek_%C3%A9s_a_mozaiksz%C3%B3k
- http://hu.wikipedia.org/wiki/T%C3%ADz_hatv%C3%A1nyai