bug #2003: Error if Volume Group Name is specified when creating a new ISCSi datastore
(cherry picked from commit 7284f07b0d450a8ec92bdc3aee5498a61aa9a8a4)
bug #2012: Default value for logo: ../images/opennebula-sunstone-v4.0.png in sunstone-views.yaml doesn't honor reverse proxies
(cherry picked from commit 21d27db9735b1fe906c3794963ef49c811bc2335)
bug #2013: Fix VNC secure websockets
(cherry picked from commit 4b964caa5621741247fad027fda515b76eae9d87)
bug #2037: Check if session cookie has been changed
(cherry picked from commit bab6ea309225e223bb0b2d084695c0b81a073986)