WIKI-156 / DEP-38 : Update depmgt to version 8 to upgrade version of XWiki to version 5.0.2
Merge remote-tracking branch 'origin/master' into feature/infinispan-full-integ

Conflicts:
	pom.xml
PLF-5233 : Full Integration of INSP in platform. (Fix unit test due to the use of jgroups3.0.x instead of jgroups 2.6.x)