check that the alert contians an aggreagate type before processing
add site extension changes to support SAF site structure
Merge pull request #942 from MauriceManning/siteextended

add site extension changes to support SAF site structure
Fix config aparams.
Fix config aparams again.
Add log statements to alert config logic.
Merge branch 'master' of github.com:ooici/coi-services into preload_alerts