A lot of new and some updated Czech translations

see diff
Some more added translations

Mainly the more visible ones
Merge pull request #1101 from Baegus/patch-1

A lot of new and some updated Czech translations
Monstro: more optimization
Merge pull request #1106 from diizy/stable-1.1

Monstro: more optimization
Merge pull request #1107 from LMMS/stable-1.1

sync