tests: 120000 is too high for 'evil' freebsd env - try 90000

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1538377 13f79535-47bb-0310-9956-ffa450edef68
tests: use debug logging level for solrcloud debug output

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1538380 13f79535-47bb-0310-9956-ffa450edef68
tests: allow the monkey to be disabled and bring back some randomization to exp and conn loss

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1538390 13f79535-47bb-0310-9956-ffa450edef68