Change version of pom.xml to 2.6.4-SNAPSHOT
Merge branch 'branches/rudder/2.6' into branches/rudder/2.7

Conflicts:
	inventory-api/pom.xml
	inventory-fusion/pom.xml
	inventory-provisioning-core/pom.xml
	inventory-provisioning-web/pom.xml
	inventory-repository/pom.xml
	pom.xml
Merge branch 'branches/rudder/2.7'