CLOUDSTACK-1682. DOC. Document reset root volume on VM reboot.
Fix volumes tests

Signed-off-by: Prasanna Santhanam <tsp@apache.org>
(cherry picked from commit bad72a0aebe75030dffb5edc452743992668ff83)
Fix redundant router deployment tests

Signed-off-by: Prasanna Santhanam <tsp@apache.org>
(cherry picked from commit b3fb75e6c6f005a9d711e6f1952f92aa78f9554b)
Fix VPC test

Signed-off-by: Prasanna Santhanam <tsp@apache.org>
(cherry picked from commit 75cd6cce40a0a645d8a277f31d863d151c0037ec)