Moved webinos.js to .webinos

Jira: WP-1324
Merge pull request #87 from cbotsikas/WP-1324

Moved webinos.js to .webinos
Initialise WRT_HOME environment variable.

This variable is used by the widget manager to determine the widget storage location.

Setting the variable here de-couples the webinos-widget module from webinos-utitlities.
Merge remote-tracking branch 'origin/service-widgets' into webinos-widget-dependancy-fix
Merge branch 'webinos-widget-dependancy-fix' into service-widgets