Fix token metadata test integration with CCM
Fix failing up/down handling integration test
Don't log to stdout by default on integration tests
Avoid race in schema refresh integration test
Fix bad interpretation of prepared stmt ID spec

There is actually only one query ID associated with each
prepared statement, and it is written as a short_string.  That is,
it's a short length followed by a string.  This was misinterpreted
as a short ID and a 16 byte md5 id.