Feature #907 : refactoring Rating services
- adding new unit test bases
Feature #907 : adding suggestion rating
- using new session cache service

Conflicts:
	suggestion-box/suggestion-box-war/src/main/java/org/silverpeas/components/suggestionbox/common/SuggestionBoxWebServiceProvider.java
	suggestion-box/suggestion-box-war/src/main/webapp/suggestionBox/jsp/suggestionList.jsp

Conflicts:
	suggestion-box/suggestion-box-war/src/main/java/org/silverpeas/components/suggestionbox/web/SuggestionBoxResource.java
	suggestion-box/suggestion-box-war/src/main/webapp/suggestionBox/jsp/suggestionList.jsp
Feature #907 : some adjustments
(adding a new SuggestionCriteria that permits to perform logical join operations)
Feature #907 : introducing a new mechanism to handle navigation view points
(adding a new angular directive to handle HTML container display toggling)