Update pt_BR.lang

Time set command description was incorrectly translated. It was translated to 'time changed' instead of 'Change time to'
Some commands parameters were translated when they shouldn't
Update it_IT.lang

Grammar fix
Merge pull request #13 from Nagapito/patch-1

Update pt_BR.lang
Merge pull request #15 from TheVikingWarrior/patch-2

Update it_IT.lang
Created cs_CZ.lang
Merge pull request #16 from Numerios/master

Created cs_CZ.lang
Update zh_CN.lang

fix some  incorrect translations.
Merge pull request #27 from Lovin000/patch-1

Update zh_CN.lang
Fixing

Fixed some grammar issues & some wrong terms.
This is what sounds the most right to a dutchman and a Belgian.
Fixing

Fixed some grammar issues & some wrong terms.
This is what sounds the most right to a dutchman and a Belgian.
Merge pull request #28 from Devocity/patch-1

nl_NL
Merge remote-tracking branch 'upstream/master'
Update nl_NL.lang