Revert "Capitalize Language names + fix Czech."
Revert "Capitalize Language names + fix Czech."

This reverts commit 5fca2c467811c0f92949c60c421716373fb6c24f.

glogiotatidis/masterfirefoxos,craigcook/masterfirefoxos,mozilla/masterfirefoxos,liu21st/masterfirefoxos,liu21st/masterfirefoxos,glogiotatidis/masterfirefoxos,liu21st/masterfirefoxos,mozilla/masterfirefoxos,glogiotatidis/masterfirefoxos,enng0227/masterfirefoxos,enng0227/masterfirefoxos,mozilla/masterfirefoxos,mozilla/masterfirefoxos,liu21st/masterfirefoxos,craigcook/masterfirefoxos,enng0227/masterfirefoxos,craigcook/masterfirefoxos,glogiotatidis/masterfirefoxos,craigcook/masterfirefoxos,enng0227/masterfirefoxos