Modified pom.xml to support update of Spring version:
 - updated spring.version property
 - removed separate spring-asm and cglib dependencies (already embedded in 3.2.x)

GCP-10175

 Reviewer : Aldrin Batac
Update XMLs so that XSD version refers to one in updated Spring

GCP-10175

Reviewer : Aldrin Batac
Sync: Merged branch 'master' into 'BMS-33-authentication-authorisation'.