update concurrent_reads default setting + comments patch by Stu Hood; reviewed by jbellis for CASSANDRA-1972
update concurrent_reads default setting + comments
patch by Stu Hood; reviewed by jbellis for CASSANDRA-1972

git-svn-id: 97f024e056bb8360c163ac9719c09bffda44c4d2@1059124 13f79535-47bb-0310-9956-ffa450edef68

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