Comment 8 for bug 1483968

@abuhayeu it should behave as @dborodaenko wrote.

"7.0-mu', '7.0-updates' are maintenance milestones, so it should be kept in same state and added to current milestone. (it is wrote in @dborodaenko comment more clearly)

Configuration should be made via ENV variables because this scripts should be run manually as a jenkins job.