DB optimizations: added key, added connection auto check in pool
!!! nodes table: add (path, container_id) key - speed up 10X
Undelete container on recreation
Testing using JUnit & Rest-Assured
Fixed error in testing; removed broken DB Pool line; fixed proper detail level for node metadata output
Can copy to deleted node; commented rabbitmq debug; fixed a bunch of tests;
Fixed bug with auto-updating expired token