Fix watch db tables and silly programming errors.
get basic posting data to metadata server working
add watch_rule_get_all()
check for alarms in a periodic task
delete watch_data when the rule is deleted
add a last_evaluated field to the watch_rule
remove unused option to watch_data_get
take better account of the sample period.
- still much to be done here (evaluation periods).
add some useful stats to cfn-push-stats
fix how the metric is accessed
fix a divide by zero