- handling of `Taskbar alignment` setting (left/center)
- start menu position is based on position of start button
- mouse clicks to original button now work properly (without triggering original menu)
- custom button is properly positioned
- Win+X works properly
* Fix naming inconsistencies
'Menu' vs 'StartMenu'
* Installer: Remove Facebook link
* Installer: Remove PayPal donate remnants
* OpenShellReadme: Remove info about product version