dsynth - Get skips working, etc
* Get 'Skipped' working, and print a nice depdency chain for the reason
why a packge got skipped.
* Added swap% to the dynamic worker reduction algorithm. It startsr at
10% swap used and maxes out at a 75% reduction with 40% of swap used.
* Add a slow-start feature so dsynth does not try to load all workers
at startup simultaneously. This gives the swap% and loadavg worker
reduction code a chance to activate before the system becomes totally
smashed.
* Cache the 0*.log logfile descirptors instead of open/write/close.
UnifiedSplitRaw
