Fixes #5250: update parent pom to 2.12 and other dependencies to newer, non breaking version

caution, we must change the definition of schema used in spring because of this :
org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: You cannot use a spring-security-2.0.xsd or spring-security-3.0.xsd or spring-security-3.1.xsd schema with Spring Security 3.2. Please update your schema declarations to the 3.2 schema.|Offending resource: class path resource [applicationContext-security.xml]