+1796. [bug] marcin
+ Kea HTTP client re-establishes connection with the HTTP server when
+ timeout occurs. Prior to this change the client tried to reuse
+ the connection after timeout often getting subsequent timeouts.
+ Re-establishing the connection may help avoiding further timeouts
+ during the High Availability operation.
+ (Gitlab #1390)
+
1795. [bug] razvan
Added check for 'renew-timer' value to be lower than or equal to
'rebind-timer' value at subnet and shared network level.