Fixed minor html issues

Added quotes in the select value
Added absolute reference to demo js file in order to work from the http://localhost:8080/webinos-api-file/test/web_root/file.html address
Updated code to match existing message structure

The register browser message structure has changed.
Removed old ref

Forgot to remove the old pzpId ref
Bind only to selected service.
Re-enable initialize after successful bind
Merge pull request #6 from andreasbotsikas/MinorTestbedFixes

Fixed minor html issues