Started hot fix 1.7.2-SNAPSHOT
Fixed issue #2429
Issue #2142 was fixed. MT issues with users cache were fixed. Storage configuration and initialization
 were made made thread safe.
Fixed issue #2430
Graph API: auto close+open tx if new class/prop/index are executed
Removed old OGLobalCfg.user & role caches
Issue which causes unexpected close of database on server because of connection multiplexing on client was fixed.
Merge remote-tracking branch 'origin/1.7.2' into 1.7.2
Corrected javadoc text

This patch includes trivial javadoc text correction.
Fix issue #2402
Merge remote-tracking branch 'origin/1.7.2' into 1.7.2
Issue #2295 was fixed.
Merge remote-tracking branch 'origin/1.7.2' into 1.7.2
Minor: fix warning
Merge remote-tracking branch 'origin/1.7.2' into 1.7.2
Fix case when reused db that is not set in thread local.
Fixed issue #2413. Fix remote sb-tree bonsai according to protocol v 21 spec
Fix test failure
Distributed: fixed minor bugs
Storage can not be opened if restore process failed.
(cherry picked from commit b13b2d9)