`Open-Shell` needs to adjust itself after OS upgrade. It seems that
`StartMenuHelper` registration is lost after such upgrade:
http://www.classicshell.net/forum/viewtopic.php?f=7&t=8082#p34821
To fix this registration, administrator rights are required (means user
interaction, UAC).
While this is acceptable in consumer environment, it is typically not
desired in business environment where users typically doesn't have
administrator rights.
This patch allows to run `Open-Shell` in silent upgrade mode that will:
* check if OS version changed (otherwise end immediately)
* perform OS upgrade tasks without any user interraction
Such mode can be then used to create scheduled task that will run this
silent upgrade check on every boot with system rights:
`schtasks /Create /RU "NT AUTHORITY\SYSTEM" /SC ONSTART /TN "Open-Shell OS updgrade check" /TR "%ProgramFiles%\Open-Shell\StartMenu.exe -upgrade -silent"`
#167
* Fix naming inconsistencies
'Menu' vs 'StartMenu'
* Installer: Remove Facebook link
* Installer: Remove PayPal donate remnants
* OpenShellReadme: Remove info about product version
