[OEM-115] hide blank contacts in the admin system
+ [OES-227] provide support for static correspondence name for commissioning body services
+ [OES-227] missing migration file
+ [OES-227] fix to have correspondence name appended to CBS
Merge branch 'hotfix/OES-227'
+ updated RELEASE file for 1.5.2 - 1.5.3
Merge branch 'master' into release/1.6