v1.4.1

Fixes #5211 - Re-enabling PUT on /v2/apps

Known issues

• Marathon does not re-use reserved resources for which a lost task is associated. In
  the event that a resident task becomes lost (due to a somewhat common event such as rebooting the host on which the
  mesos agent and task are running), then the resident task becomes Unreachable. Once it becomes this state, Marathon
  will consider the task gone and create additional reservations (it should probably wait until it becomes
  UnreachableInactive to do this). Even though the prior reservation is re-offered, Marathon will not use it.
• Marathon can confuse port-mapping in resident tasks
• Marathon does not read resident task information properly from the persistence layer
• Data migration for UnreachableDisabled