Release v0.6

Changes:
Done - F58: Add reaction on double click for buttons.
Done - F34: Add calculator program.
Done - F65: Add calendar.
Done - F68: Update calendar to show years too.
Done - F56: Add modem control button to the control panel.
Done - F70: Update Edit component, add cursor moving.
Done - F39: Add scroll bar on-scroll-click value changing.
Done - F73: Change window moving mechanics.
Done - F42: Add logger.
Done - F76: Add logging on loading.
Done - F77: Add logging to the system classes.
Done - F78: Change Id generation to generate only letters and numbers.
Done - F74: Add Home, End and Delete keys processing in Edit component.
Done - F79: Add real loading screen with progress bar.
Done - F82: Change modem manager class to modem state monitor.
Done - F81: Make OS screen size independent.
Done - F69: Improve GvinCalculator.
Done - F83: Update GvinPaint to work with new image format.
Done - F86: Remove unused PeripheralsManager.
Rejected - F21: Add login screen and password entering (configurable).
Fixed - B13: [Issue #13] GvinFileManager error when copying directory
inside itself.
Fixed - B14: [Issue #14] GvinFileManager context menu is showing out of
the window.
Fixed - B15: [Issue #15] GvinFileManager error when delete key is
pressed.
Fixed - B16: [Issue #16] GvinFIleManager: Not properly drawing context
menu.
Fixed - B17: [Issue #17] Edit: When focused, cursor sometimes blinks all
over the screen.
Fixed - B18: [Issue # 18] Color schema not applying for desktop context
menu.
Fixed - B19: [Issue #19] Edit component: Cursor on the wrong position
after setting Text value.
Fixed - B20: [Issue #20] Loading screen: Progress bar not showing
correctly on large resolutions.