* ud2stts testing
+ tagged ddc-2.1.19
+ re-tagging v2.1.19
+ divide-by-zero paranoia for 2.1.19 changes
+ v2.1.19 release
+ tagged ddc-2.1.19-rc1
* cleaned some stale files
+ v2.1.19-rc1 change log
+ v2.1.19-rc1 cleanup