Update link to main repository in README
Merge branch 'dev'

Merging content from dev
Merge from dev (Colobot Gold 0.1.0-alpha)
Colobot Gold 0.1.1-alpha
Colobot Gold 0.1.2-alpha
Error in Russian translation Exercises->Motors->Dragster
Error in Russian translation Exercises->Motors->Dragster
Merge branch 'master' of git://github.com/microspace/colobot-data into dev