create feature spec for purposes window feature
refactor gtk cucumber hook
remove rspec examples for what is going to be tested by cucumber
add key_event_for and keyval_for helpers
add steps for purposes window feature
change MainWindow to fullfil the purposes window spec
add layout for purposes_window
init sensor bar only when it is present in Counter
create feature spec for registering entrances
build a main gui window with a valid access control counter in helpers
add steps for register entrance spec
main window stores entrances and shows a greet message
add layout for greet message window
pass a spy counter to MainWindow constructor
add feature scenario for an invalid purpose number
change statement to seem more natural
translate testing purposes descriptions to english
add and change steps definitions to match features
hide all application windows after each scenario
make MainWindow fill the purposes list after load glade layout