Update pt_BRO translation by Tucalipe
closes ticket #4164
Update it.po by Alpha93
closes ticket #4174
Update el.po by Nikos
closes ticket #3703
Update hu.po by MeszarosTomi

Note to updater, keep line endings the same as the original,
and also name the po file correctly as well.

closes ticket #4250
Merge branch 'bugfixes'