TAB-4829: add ManagementRESTServiceConfiguration config assertions

git-svn-id: http://svn.terracotta.org/svn/ehcache@9130 b9324663-ca0f-0410-8574-be9b3887307d
TAB-4829: merge fix from 4.2

git-svn-id: http://svn.terracotta.org/svn/ehcache@9131 b9324663-ca0f-0410-8574-be9b3887307d
TAB-4829: merge fix from 4.2

git-svn-id: http://svn.terracotta.org/svn/ehcache@9132 b9324663-ca0f-0410-8574-be9b3887307d