Sing in with facebook, remake link in menu, add favicon
Add localization, fix some bugs
Merge branch 'master' into roma

Conflicts:
	SSEL/src/main/resources/messages_en.properties
	SSEL/src/main/resources/messages_ru.properties
	SSEL/src/main/resources/messages_ua.properties
	SSEL/src/main/webapp/WEB-INF/spring/social.xml
fix merge bugs