add Logger and DebugDialog to show Debug Logs
add AutoUpdater project
refactoring autoupdater
add success message in autoupdater
add php script to check updates
add app versioning, UpdateManager and update logic
fix autoupdater for mac
add how to build quazip (how_to_build.md)
add debug logs
fix update logic:
1) stop checking updates if user declined updates
2) add request to update in custom menu
3) make random interval for checking update (from 1 to 5 hours)
convert websocket error to human-readable string
fix autoupdater for Mac
1) set updater script url
2) update setup script
3) add into updater information messages Qt::WindowStaysOnTopHint flag
fix update logic for Mac
fix autoupdater for Mac

fix autoupdater for Mac
set version 1.0.0 in setup script