ENG-225 Improve check-short coverage by adding tests

git-svn-id: http://svn.terracotta.org/svn/ehcache@8024 b9324663-ca0f-0410-8574-be9b3887307d
ENG-217 ENG-225 Change test so that failure to interleave is not a test failure

git-svn-id: http://svn.terracotta.org/svn/ehcache@8025 b9324663-ca0f-0410-8574-be9b3887307d
Delete ehcache-2.7.4 tag to retag.

git-svn-id: http://svn.terracotta.org/svn/ehcache@8026 b9324663-ca0f-0410-8574-be9b3887307d
Tag ehcache-2.7.4 from 4.0.4-rc branch

git-svn-id: http://svn.terracotta.org/svn/ehcache@8027 b9324663-ca0f-0410-8574-be9b3887307d