Merge pull request #4 from KatyaBondarenko/master

merge master into development
class ATM was updated
Merge pull request #5 from KatyaBondarenko/update4

class ATM was updated
modified classes BankController, Dispenser, Keyboard
Merge pull request #6 from KatyaBondarenko/update5

modified classes BankController, Dispenser, Keyboard
new file model, deleted BankController, HelloWorld, modified ATM, CardScanner, Dispenser, CheckPrinter, Keyboard, Screen
Merge pull request #7 from KatyaBondarenko/update6

new file model, deleted BankController, HelloWorld, modified ATM, CardSc...
Merge pull request #8 from KatyaBondarenko/development

merge master into development