ticket:2 Log In working properly
ticket:1 Changes in structure of app
ticket:1 Added new table Contacts that contains all contacts of user
ticket:1 Added checking database version
ticket:1 Added comments.
ticket:1 Done
ticket:2 Changed structure of app
ticket:2 Code without comleted tests
ticket:2 Done
ticket:3 Changed structure of app
ticket:3 Added comments
ticket:3 Done
ticket:4 Changed structure of app