Remove dependancy on webinos-utilities.

WRT_HOME environment variable is now set in webinos_pzp.js

REVIEW - would this work for android platform too? If so, we can remove the platform_interfaces hack.
Remove ui folder

This is no longer needed - has been moved to the module webinos-widgetServer
Merge branch 'remove-webinos-dependancy' into service-widgets
Add auto-start support.