ENG-179: upgrade to jetty 8.1.12

git-svn-id: http://svn.terracotta.org/svn/ehcache@8094 b9324663-ca0f-0410-8574-be9b3887307d
clean up RMI test configurations

git-svn-id: http://svn.terracotta.org/svn/ehcache@8095 b9324663-ca0f-0410-8574-be9b3887307d
wait for disk thread to finish properly

git-svn-id: http://svn.terracotta.org/svn/ehcache@8096 b9324663-ca0f-0410-8574-be9b3887307d
merge 8096 from 2.7.x : wait for disk thread to finish properly

git-svn-id: http://svn.terracotta.org/svn/ehcache@8097 b9324663-ca0f-0410-8574-be9b3887307d
merge 8096 from 2.7.x : wait for disk thread to finish properly

git-svn-id: http://svn.terracotta.org/svn/ehcache@8098 b9324663-ca0f-0410-8574-be9b3887307d
merge 8066, 8093, 8095 from trunk : RMI test fixes

git-svn-id: http://svn.terracotta.org/svn/ehcache@8099 b9324663-ca0f-0410-8574-be9b3887307d
merge 8066, 8093, 8095 from trunk : RMI test fixes

git-svn-id: http://svn.terracotta.org/svn/ehcache@8100 b9324663-ca0f-0410-8574-be9b3887307d