0.9.72

Signed-off-by: Zdenek Maxa <zdenek.maxa@cern.ch>
Replacing old SiteDB v1 API with v2.

Replacing #4661
Uses Services/SiteDB interface
SiteDB URL completely removed from the configuration.

Fixes #4625
Merge pull request #4664 from zdenekmaxa/reqmgr-sitedbv2api-4625-2

Replacing old SiteDB v1 API with v2.