This makes the exceptions more self describing and simplifies httpapi and sockapi.
An important step to improve asynchttp conveyance of error data that would normally
be an http error in synchronous operation.
Add TimedAndSizeRotatingFileHandler which mixes together
the RotatingFileHandler and TimedRotatingFileHandler from
python logging module to process the log data.
Add logrollover event to track the renamed information, so
that console session can read the log data from current log
file and last renamed file.
Global configuration is used by the log handler. The format
of the log section in '/etc/confluent/service.cfg' is like:
[log]
when = m
backup_count = 3
max_bytes = 8192
utc = False
