PLF-5702 : Cannot redefine favicon.ico because it's defined in trial.war
PLF-5624 : Improve People REST service

Fix description:
- Avoid Hard-code of super user as root in People REST service

Conflicts:
	component/common/src/main/java/org/exoplatform/platform/common/rest/services/SuggestPeoplePortlet/PeopleRestServices.java