Some changes.
Merge branch 'master' of https://github.com/Bogush/PTTask2.git
Merge branch 'master' of https://github.com/Bogush/PTTask2.git
Merge branch 'master' of https://github.com/Bogush/PTTask2.git
Merge branch 'master' of https://github.com/Bogush/PTTask2.git
Total renaming.