Merge branches 'upmaster' and 'reqmgr2-databasecleanup'
ReqMgr - PhEDEx subscriptions,cloned request state

- PhEDEx subscriptions arguments added into JSON request templates
- cloned requests will not have new state but assignment-approved
Merge pull request #4357 from zdenekmaxa/reqmgr-feb-opsadditions

Reqmgr feb opsadditions