Some documentation updates and fixes.
Two modifications re reporting: BasicResourcePool now catches and transforms the StackOverflowError that occurs if no suitable resource can be found after max-stack-frames checks, we now throw a NoGoodResourcesException. Exceptions that occur within the Statement cache, from Statement acquisition attempts within a helper Thread, are now thrown nested in an Exception thrown from the client Thread, so clients have information about both the problem and what application code's call provoked it.