Bug fixing of service options on the PZH

Corrected PZH service unregister and register option

Jira Issue: WP-528
Add screencast functionality

Jira issue: WP-705
[1] Add "Seeing is Believing" cross-zone peer authentication Function
[2] Integrate PZP peer discovery with SiB
[3] Service sharing supports between cross-zone peers
[4] UI at PZP landing page to demo the functions

Jira Issue: WP-346
Code clean up and format check

Jira Issue: WP-346
Merge remote-tracking branch 'upstream/master' into Sib_Disco
Rebase client.html file and clean up

Jira Issue: WP-346
Update webinos/core/api/tv/lib/webinos.service_tv.vlcscreencast.js

corrected IP assignment (missing ";")
Merge pull request #429 from habibvirji/WP-528-Refactor-PZH

Bug fixing of service options on the PZH
Document update and correction for LocalConnectionManager

Jira Issue: WP-711
Merge remote-tracking branch 'upstream/master' into Sib_Disco
Update webinos/core/api/tv/lib/webinos.service_tv.vlcscreencast.js

Fixed incorrect instantiation of VLC
Update webinos/core/api/tv/lib/webinos.service_tv.vlcscreencast.js

Improve error message
Merge pull request #430 from mjprins/screencast

Add screencast functionality
Update per review comments

Jira Issue: WP-346
Merge pull request #431 from ziransun/Sib_Disco

Sib disco
Merge pull request #432 from ziransun/WP-711

Document update and correction for LocalConnectionManager