Split Redis.pm into two files including TinyRedis.pm, added configuration option to load a second module bug 6990 - and documented autolearn_force better for bug 5503 as well as documented the multiple and maxhits tflags better

git-svn-id: https://svn.apache.org/repos/asf/spamassassin/trunk@1557309 13f79535-47bb-0310-9956-ffa450edef68
Added autolearn_force debugging and logging - bug 5503

git-svn-id: https://svn.apache.org/repos/asf/spamassassin/trunk@1557310 13f79535-47bb-0310-9956-ffa450edef68
Adding TinyRedis.pm

git-svn-id: https://svn.apache.org/repos/asf/spamassassin/trunk@1557311 13f79535-47bb-0310-9956-ffa450edef68