fixes #2562 libvirt domain listen address, add libvirt_default_console_address setting
(cherry picked from commit 710dfa86835e7b8b430cf59646a7888746c3b0bc)
fixes #2549, fixes #2544 - new host organization and location should default to current context if it exists
(cherry picked from commit 66afbc33721b39f768d4fba7f6d134bfe8188467)
fixes #2587 - migration to increase varchar length of media.name and other string fields
(cherry picked from commit ea5a012715ce2112c5d880b8f7562bcbb444e67d)