Skype 5.8.0.154

# New features and improvements:
* Full HD video-calling
* Support for Facebook audio and video-calling (beta)
* Group screen sharing
* Hide offline Facebook contacts
* Push to Talk
* Skype updater service
* Bing Toolbar integration
# Fixed issues:
* Accessibility
- Active call plus menu focusing was not correct
* Calling
- Seldomly in compact mode call duration was not displayed
* Group conversations
- It was not possible to add a phone number to a group which belonged to a Facebook contact
* Options
- Proxy settings in client were not disabled when proxy was set using registry keys