Soften jvm overload failures
Set maxWarmingSearchers back to default
Change catch-all to ignored
Merge remote-tracking branch 'origin/develop' into er/throughput
Use actual reserved word for test

I'm not away of `ON` being a reserved word in Lucene query
syntax. Given the original reporter mentioned `OR` I've updated the
test to use that.
Merge pull request #358 from basho/er/throughput

Soften JVM overload failures

Reviewed-by: rzezeski