place holder picture.
Settings moved from HKLM to HKCU, now it should be possible to register
the filter per user instead of globally, this way it won't require
administrative privileges.
Notify to the clients about virtual devices changes.
- Devices controls working.
- Placeholder picture now supports PNG and JPEG formats.
- Placeholder picture can be updated on fly.
- Clients listing working.
- Device configurations can be loaded at once.
- Print better looking tables in the manager.
