refs #5549 #5578 disabling some mac tests

git-svn-id: file:///svn/mysql.com/mariadb-5.5.30@55064 c7de825b-a66e-492c-adef-691d508d4ae1
refs #5549 disable test on mac

git-svn-id: file:///svn/mysql.com/mariadb-5.5.30@55068 c7de825b-a66e-492c-adef-691d508d4ae1