Minor changes wrt logging in StorageNodeManagerBean

(cherry picked from commit 213427f4092116a0ee3962158a371af247e09c8d)
Signed-off-by: Thomas Segismont <tsegismo@redhat.com>

Conflicts:
	modules/enterprise/server/jar/src/main/java/org/rhq/enterprise/server/cloud/StorageNodeManagerBean.java