- Update to version 0.4.2
* Wnck: Add missing sanity check
* Settings: Use different colors for active and inactive indicators
* Use FDO compliant icon name
* Fix blurry icons/thumbnails when UI scale > 1
* GroupMenu: Make sure the window is the right size for each popup
* Group: Stop timeouts in destructor
* Fix pending source when GroupMenu is destroyed
* Settings: Bound icon sizes
* SettingsDialog: Fix deprecated icon names
* Remove unused project files
* Remove contrib directory
* GroupMenu: Re-popup if windows are added/removed when shown
* Update preview widgets on "showPreviews" setting change
* Helpers: Always stop timeout before starting a new one
* Wnck: Always update unactivated window state
* Group: Do not filter out skip-tasklist windows when activated
* Group: Do not manually mark window as activated when activating group
* Group: Update active state when adding windows
* Group: Remove useless class member states
* AppInfos: Use also app names for matching
* Use g_debug for debug logs
* Replace FALSE with false
* Replace NULL with nullptr
* Release data as much as possible on XfcePanelPlugin::free-data signal
* Wnck: Do not check for active window in init
* Fix remaining raw pointers not released
* Manage group button lifetime in Group
* Revert "Reset pointer when group button is destroyed"
* Wnck: Use std::shared_ptr to manage memory allocation of GroupWindows